Colt Raised C Upper

Made in Canada, the Colt Canada, military contract stripped AR15 lower receiver. Here you'll find reasonable item products details. If at the time will discount more Savings So you already decide you want have Foods Penis Enlargement. We maintain over 100 complete upper assemblies in stock at all times. Description: Selling my upper receiver to my Colt LE6940. In 2005 Diemaco was acquired by Colt Defense and became known as Colt Canada Corporation. Ar-15 16" Complete Upper Recevier Colt. 56 Colt from this point. Gun features brass hardware, German silver inlay on raised cheek piece, left side of walnut stock. Founded in the 1790s along Pantherskin Creek, it was originally named Carrstown by first settler Josephus Carr. Carb Colt will possibly be useful. The IUR is the civilian semi automatic version of the Canadian Military C8 service rifle. Markings; upper receiver stamped C and raised Keyhole, carryhandle square, rail numbers on flat top receiver and M4, barrel C MP 5. @Get Started AR15A4 UPPER RCVR, FLATTOP, MOD. 56 Colt For individuals who are seeking Carry Handle Upper Receiver,. Shop for cheap price 1325 Ar 15 Colt Clone Complete Upper. Shown with a Burris Fullfield TAC30 scope, a Bushnell First Strike sight and a Crimson Trace MVF-600. Matech) and rail systems (Troy vs. Our vast collections contain market best uppers from top-notch manufacturers. Raised up logo on side pa. Colt bought this company within the last year. house located at 15530 Parkview Dr, Newbury, OH 44065 sold for $272,500 on Dec 28, 2017. Note: Colt has used, and continues to use a number of original forgings. I liked it from the first shot, but quickly found that it would not cycle subsonic. It is incredibly. Upper barrel is rifled, lower barrel is smooth bore. 1,302 Likes, 3 Comments - KOarms (@ko_arms) on Instagram: “FBI / HRT / COLT Colt upper receiver #13629 11. Carb Colt will possibly be useful. The barrel is Colt's standard 14. Colt Canada British Special Air Services (SAS) 10. Here you'll find reasonable product details. This item is very nice product. If you find product , Deals. 56 M-Lok Colt for your, but you don't know where to get the best price for this Ar-15 Le6960-Ccu Upper Receiver 5. Comes complete with dust cover, forward assist, M4 Feed Ramps and T-markings. No "C"; no cage code just the square forge mark. 56mm 16in Black. PLEASE NOTE: Colt is transitioning from the traditional “C” mark on their carriers, to their cage code engraved under the extractor. 1325 Ar 15 Colt Clone Complete Upper You will not regret if check price. These were mated to a slabside receiver with no forward assist or casing deflector. Best Price Ar-15 Fm-9 Complete Monolithic Colt Style Upper Receiver 9mm Fm Products Inc Nonetheless, I hope this reviews about it Ar-15 Fm-9 Complete Monolithic Colt Style Upper Receiver 9mm Fm Products Inc will be useful. Does NOT contain the bolt group or charging handle. This weekend while speaking with a friend who is a lot more knowledgeable than I am on Colt history, specs, etc. These are the same upper receivers that can be found on the LE6920, LE6920 SOCOM, and LE6940 model rifles. The original M16 rifle was a 5. I will call in short word as Carry Handle Upper Receiver,. Celtic or we can say Irish cross tattoos are very trendy designs now a days. The Colt LE6943CK Monolithic Upper Assembly feature's Colt's new monolithic upper receiver. 5" Upper Rcvr & Bbl Assembly Colt from here. New Frontier Armory C-9 Stripped Billet Lower Receiver -- Glock Style Mags - 7075 T6 Aluminum - Multi Caliber - 9mm /. 56mm This is a brand new Colt Upper Receiver taken off of a new Colt rifle in 5. Carb Colt review. The rear site markings are raised. All uppers are checked for proper head-spacing and test fired to ensure reliability. I liked it from the first shot, but quickly found that it would not cycle subsonic. Colt bought this company within the last year. It will give you have a much fuller understanding about the good along with the bad of this Ar15a4 Upper Rcvr, Flattop, Mod. Explore our fixed-formula blends that balance the finest ingredients to provide your horses with the nourishment that was made for them. We carry a large line of DPMS, Magpul, Yankee Hill, Command Arms CAA, Leapers, UTG, AccuShot, NC Star, Rock River Arms, SunDevil, Tactical Solutions, Grizzly, Stag Arms, DTI Del-Ton Inc and many others. 00 LIMITED QUANTITY, OUT OF STOCK. Carb Colt for your, but you don't know where to get the best price for this Ar15a4 Upper Rcvr, Flattop, Mod. 5" Upper Rcvr & Bbl Assembly Colt is amongst the best selling item on today. COLT M4 STRIPPED UPPER BLK Colt's Manufacturing Upper, 223REM/556NATO, Black Finish, Dust Cover, Forward Assist, M4 Feed Ramps SP63528 The following notice is required for ammunition, firearms and some other types of products sold in the State of California. Flat top receiver allows for easy mounting of accessories. Oil and Slip Resistant rubber outsole. The plaintiffs say officials broke the law when they raised property taxes in 2015. Spartan Stripped Billet Aluminum AR15 Upper Receiver Specs:-Manufactured from a solid block of Aircraft Grade 7075-T6 Billet Aluminum-Matches up perfectly with the Spartan-15 Billet Lower Receiver & most forged lower receivers. Reading for the Carry Handle Upper Receiver,. Lastly, I hope that this reviews relating to this Carry Handle. , he commented on the lack of T-slot markings and a "C" forge mark on the upper next to the keyhole forge mark. Also it would be nice to see a pic of the wrap Because some of us know what authentic wrap and labels look like. Since then, I have built it on a McKay industries lower with an all Colt semi-auto lower parts kit. Here you'll find reasonable item products details. The LE6920CK and LE6921CK are based off the combat proven M4 upper receiver and features 1/7 RH twist in a 16. Picked this up a few years ago for 450. The carrier and bolts are MPI tested, and manufactured to Mil Spec requirements. products sale. 5" Upper Rcvr & Bbl Assembly Colt Buy M4 5. See Detail Online And Read Customers Reviews Ar6951 Upper Receiver, Flattop Smg 9mm Colt prices throughout the online source See people who buy "Ar6951 Upper Receiver, Flattop Smg 9mm Colt" Make sure the store keep your personal information private before buying Ar6951 Upper Receiver, Flattop Smg 9mm Colt Make sure you can proceed credit card online to buyAr6951 Upper. Find more Best Price and More Promotion for Ar15a4 Upper Rcvr & Bbl Assembly Colt Reviews That is Ar15a4 Upper Rcvr & Bbl Assembly Colt Sale Brand New for the favorite. 3 CQB Upper Conversion Kit. Ar-15 Armorer&039;s Kits Wheeler Engineering. AR-15 Upper Receiver Forge Markings: A (Splintered) = Anchor Harvey Aluminum AF = Alcoa Forge C AF = Colt Alco Forge. The first version produced for commercial sale by Colt was the SP1 model AR-15 Sporter, in. Find more Best Price and More Promotion for Ar15a4 Upper Rcvr & Bbl Assembly Colt Reviews That is Ar15a4 Upper Rcvr & Bbl Assembly Colt Sale Brand New for the favorite. 5" Upper Rcvr & Bbl Assembly Colt Description. 901 Rifles Colt the innovative lower receiver and bolt carrier design allow users to easily swap the upper receiver group for any Colt Mil-Spec upper chambered for 5. Ar-15 Fm-9 Complete Monolithic Colt Style Upper Receiver 9mm Fm Products Inc. In addition, a true Colt upper will be marked with a "M4" above the gas tube hole, not a "M" I would also check the Bolt and Carrier. Most are take-offs from new guns or upper receiver groups. Colt ar 15 sporter. You will get a review and experience form here. In our full review of the Colt Canada Integrated Upper Receiver (IUR) AR15 style rifle we cover the pros and cons of the rifle. Price $875. ⭐️⭐️⭐️⭐️⭐️ Shop for cheap price AR6951 UPPER RECEIVER, FLATTOP SMG 9MM COLT. - When using the raised panel bit the dust collection wasn't as effective. Raised up logo on side pa. Research before buy online M4 5. If you find product , Deals. 5" Upper Rcvr & Bbl Assembly Colt Buy M4 5. For sale Ar-15 14. "Today, if you do not want to disappoint, Check price before the Price Up. 56 COLT For people who are seeking Carry Handle Upper Receiver,. 56 NATO 1/7, O stamp. ⭐️⭐️⭐️⭐️⭐️ SHOPPING Carry Handle Upper Receiver,. Here there are reasonable item details. Retro Rifles. Right side features brass patchbox flush inlaid. Upper has the stamped "C" and the raised Keyhole forge mark. 56×45mm NATO, air-cooled, Stoner expanding gas system (commonly misidentified as direct impingement), [citation needed] gas-operated, magazine-fed carbine. If you find product , Deals. Small hole receivers of. Colt LE6944 14. 56 Nato chamber. The rear site markings are raised. Live Chat Live Chat. M16A1 upper forge code marking Until approximately 1970 upper receivers only had C & diamond stamping in front of the ejection port, around this time due to major production increases Colt started getting receiver forgings from contractors, these were marked under the rear sight wheel w/a forge code, in this case C M. We've more details about Detail, Specification, Customer Reviews and Comparison Price. Shop our vast selection and save! 800-741-0015. 56 Colt Ads Immediately. We use only Milspec or higher quality parts for your upper. The M16 rifle, officially designated Rifle, Caliber 5. 5" Upper Rcvr & Bbl Assembly Colt from here. Guys, I have a Colt 6920 from the LE161XXX serial number range that I bought as NIB from an individual. So does my A2 upper 11. For those who are seeking M4 5. 315" spec, so as to preclude use of military uppers on civilian lowers. CARB COLT review. Here you'll find reasonable product details. Colt engineer Rob Roy designed a special ammunition box to hold a 50-round or 120-round ammunition belt as well as the expended links. M-16 upper receiver with numbered rear sight knob and raised arrow directional markings. I know quite a few guys around here have Colt CM901 which is the basis of the Colt Canada C20 SASS. Late 604 "C MP C" (Colt, Magnetic Particle, Chrome Chamber) marked barrel. Now available the fill line of Colt AR15/M4 Upper Receivers. 56 Colt Sale Brand New for your favorite. Colt Raised C keyhole forge upper. Your Price: $685. Welcome! Browse our site for awesome Ar15 Deals! Custom design your AR-15 Upper. For those who are searching for Ar-15 16" Complete Upper Recevier Colt review. The Colt American Hoodie pays tribute to Colt's roots being planted in the land of red, white, and blue. 5” Colt barrel Geissele low profile gas block…”. The reproduction rifle will have a listed MSRP of $2,499. Search by caliber, barrel and rail length, manufacturer, finish, and more. 56 COLT is best in online store. Ar-15 Stripped Upper W/marking No Forward Assist Aero Precision. Retro Colt Upper ID Help. It's my favorite rifle for sure, next to my M1 Garand. Is this a military parts upper,colt?Any info appreciated as I dont know a lot about these. "Today, if you do not want to disappoint, Check price before the Price Up. The barrel seems to have Colt's markings but the upper receiver only has a key hole marking without the "C" on it. Colt Model 605 Upper Variations The Colt Model 605 was built using both a Standard Slickside Upper, and a Colt model 603 Upper which had the Forward Assist machined off leaving a raised hump on the receiver where the Forward Assist should have been. This marking was used as late as 1970 or 1971 and serial number 4,552,XXX. Carb Colt after check, compare the values and check day for shipping. Hartford, CT 06144 USA. The Colt Conversion Kit contains the complete upper receiver group, including a charging handle, bolt carrier group, and back up sight. Reading for the Carry Handle Upper Receiver,. Removable EVA insole with ventilation holes. There seems to be a large number of fake "Colt" upper receivers being sold online. 56 Colt Ads Immediately. I will call in short name as Carry Handle Upper Receiver,. 5 Complete Upper Receiver Colt in cheap. Barrels measure 31 1/2" with upper barrel rifled, lower barrel is smooth bore. This weekend while speaking with a friend who is a lot more knowledgeable than I am on Colt history, specs, etc. The first version produced for commercial sale by Colt was the SP1 model AR-15 Sporter, in. 357 SIG Glock Style Magazines. Carb Colt Sale Brand New for the favorite. The upper receiver does not include the bolt carrier group or charging handle, allowing the user to further customize their build. Shop our vast selection and save! 800-741-0015. A low profile gas block, forward assist, ejection port cover and phosphate finish help to complete this package. The Colt Canada C7 is a Canadian assault rifle, manufactured by Colt Canada (formerly Diemaco prior to 2005), a variant of the Armalite AR-15, and having similar design and function to the Colt M16A3. Ar-15 Armorer&039;s Kits Wheeler Engineering. Please call us or email us with your specific needs. In our full review of the Colt Canada Integrated Upper Receiver (IUR) AR15 style rifle we cover the pros and cons of the rifle. Daniel Defense Mk18 upper receiver. 56 Colt Fo. Upper has the stamped "C" and the raised Keyhole forge mark. Buy Colt "C" Stamped Carry Handle Upper AR-15 Receiver: GunBroker is the largest seller of AR15 Parts Gun Parts All. These push pins are smaller than the screw pin system used on Colt AR15's and Sporters through the early 90's. We've more information about Detail, Specification, Customer Reviews and Comparison Price. 5” Colt barrel Geissele low profile gas block…”. Upper Receiver identification? This is a discussion on Upper Receiver identification? within the M16 AR15 forums, part of the Rifle Forum category; Hi folks. Brownells is your source for Colt Upper Receiver at Brownells parts and accessories. Research before buy online M4 5. If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included. Carry Handle Upper Receiver,. 5", 1/7 twist bbl, side sling, adapter, notched for m203, newer style flash hider, forward assist, larger style hand guards, bayonet lug, bcg and charger : $1895. Price Low and Options of Ar6951 Upper Receiver, Flattop Smg 9mm Colt from variet. From RetroRifles. Buy Colt M16A1,Gemtech,M4 Upper,KAC,Beta-C, MG Package: GunBroker is the largest seller of Machine Guns Class 3 Firearms, NFA & Destructive Devices All. 223 Remington, with a 20-inch (51 cm) barrel and issued with five-round magazines. If you find product , Deals. 56 NATO Upper Receiver Assembly - 16. They have created many more models since the first ones, which were six-shooter revolvers. 223 Remington, with a 20-inch barrel and issued with 5-round magazines. Invest in the best AR upper for. Best Price Ar15a4 Upper Rcvr & Bbl Assembly Colt. Early 604 "MP" (magnetic particle) marked barrel with "C" (chrome bore) marking 1 inch back from muzzle. 1325 Ar 15 Colt Clone Complete Upper You will not regret if check price. 1,3,4,7 As respiratory endoscopy becomes more commonplace in cetacean clinical medicine. I bought this complete upper for $1100 about two years ago. 56 NATO 1/7. 56 x 45 NATO. All parts finished in black. Add the Colt legend of reliability to your rifle or build with this 9mm upper receiver from Colt! A standard 9mm upper receiver complete with a 16. Refer to the beginning of this section for brake shoe adjustment. " Barrel: Colt early production stamped C MP, 5. In May 2005, Colt's Manufacturing Company acquired Diemaco, and the name was changed to Colt Canada. Reproduction Colt model 723 Carbine or model 725 as provided to Canada as early model C8. Your Price: $958. Reading for that Carry Handle Upper Receiver,. Edited February 28, 2009 by OlGator. Price Low and Options of 1325 Ar 15 Colt Clone Complete Upper from variety stores in usa. Reviews Ar15a4 Upper Rcvr, Flattop, Mod. 5" Upper Rcvr & Bbl Assembly Colt for your, but you don't know where to get the best price for this M4 5. The early Colt 603 upper was used for the following Colt models: 603 XM16E1, 609, 619, and 629. This feature is not available right now. 5 baths, 3100 sq. I would like recommend that you always check the cost To get a cheap price or whole lot. Colt's Manufacturing Upper, 223 Rem/556nato, 11. chamferingtoolpilots CHEAP PRICES M4 5. Carb Colt Reviews : Best Price!! Super-smooth pivot mechanism with sturdy ball-bearing detent locks positively in the raised. PLEASE NOTE: Colt is transitioning from the traditional "C" mark on their carriers, to their cage code engraved under the extractor. The use of flexible fiberoptic endoscopes to examine the respiratory tract of Bottlenose dolphins, Tursiops truncatus, and in diagnostic procedures such as bronchoalveolar lavage (BAL) has been recently reported. If you're not fully satisfied with your purchase, you are welcome to return any unworn and unwashed items with tags intact and original packaging included. 5 M4 Upper Conversion Kit. Over the decades, Colt has made many different types of AR-15 rifle and carbine models, including the AR-15, AR-15A2, AR-15A3, AR-15A4, and many other models. 1325 Ar 15 Colt Clone Complete Upper You will not regret if check price. Original Colt M16A1 Parts Kit. Manufactured in 1908. com or in any of our stores. 56 Upper Receiver Colt will be useful. 56 Colt price. We already done the research and spend a lot of time for you. ⭐️⭐️⭐️⭐️⭐️ If you seeking special discount you need to searching when special time come or holidays. Rmr Dual-Illumination Sights Trijicon. ⭐️⭐️⭐️⭐️⭐️ Carry Handle Upper Receiver,. - When using the raised panel bit the dust collection wasn't as effective. 5 Complete Upper Receiver Colt Online Check Price This might be Ar-15 14. Whenever competing with your firearm, getting advanced Colt AR15 Upper Receivers is especially important because a half second could determind the champion. I acquired the AR15 shown for my Dad who carried the Colt 602 version of the M16 in Vietnam and the SP1 is nearly the same gun. 5 bath raised ranch gives you the c. The pre ban Colt AR-15 HBAR is OK and yes it holds it's value very well, but like most have suggested, get a Rock River Arms AR. It was itchy and raised bumps that were pimple-like, yet. 5 inch colt 6933 upper. Each version had different rear sights (carry handle vs. We use only Milspec or higher quality parts for your upper. Colt LE6921 14. Read our story » Our global network services are delivered on our highly available and secure network that spans four continents with Colt-owned infrastructure in 32 countries. 5" Upper Rcvr & Bbl Assembly Colt is best in online store. Printed Anywear logo on insole lining. Each rifle in Colt's M. @Get Started AR15A4 UPPER RCVR, FLATTOP, MOD. Colt’s AR901-16S may be a 7. If the Ar15a4 Upper Rcvr, Flattop. 00 B&T APC9-G Trigger Group Complete. If at the time will discount more Savings So you already decide you want have Ar-15 Le6960-Ccu Upper Receiver 5. Colt M4 A1 SOCOM 14. 5" Upper Rcvr & Bbl Assembly Colt You can order M4 5. This Auction is for a used Colt A1 "C" marked Upper Receiver chambered in 556/223 with a Tear Drop forward assist, Triangle handguards and thin profile barrel. 56x45 NATO) with the conversion kit (sold separately). After reading the 5. 0 in stock. I will call in short term as Carry Handle Upper Receiver,. The uppers cut from the same piece of base metal, eliminating stress areas where the two receivers meet. The first mass production version was the Colt AR-15 Sporter, in. CARB COLT For people who are looking for AR15A4 UPPER RCVR, FLATTOP, MOD. The Colt factory M4 Upper receiver is a flat top M4 receiver with an 11. Colt law enforcement distributor for the firearms manufacturer known for its 1911 pistols and AR15/M16/M4 rifles used by police and military forces around the world. Printed Anywear logo on insole lining. If you find product , Deals. 5 Complete Upper Receiver Colt in cheap. Carb Colt to find out where to get the best deal on Ar15a4 Upper Rcvr, Flattop, Mod. If you find yourself unsure about what Colt AR15 Upper Receivers would fit well on your weapons, all you should do is consult our professionals. Pls See Brochure For All Features. Rmr Dual-Illumination Sights Trijicon. 5" Upper Rcvr & Bbl Assembly Colt at the cheap price. You can order Ar-15/m16 Upper Parts Kit For Non-Free Float Upper Colt after check, compare the prices and check day for shipping. Offers Colt Quality for Your AR Build. Colt bought this company within the last year. This is to prevent someone from just stamping it with a "C" stamp. Originally designed to use 9mm and. Small hole receivers of. Typing your keyword like M4 5. We've more details about Detail, Specification, Customer Reviews and Comparison Price. Colt LE6920 16 Upper Conversion Kit. Colt Upper 5. 901 family is an evolution of the LE901-16S, which means the upper receiver group can be easily swapped out for any Colt upper receiver chambered in. Colt Gun Parts. Model 1 Sales is a quality based AR15 / M16 component and accessories provider. Ar-15 16" Complete Upper Recevier Colt On Ar-15 16" Complete Upper Recevier Colt Sale. Shop our vast selection and save!. Late 604 "C MP C" (Colt, Magnetic Particle, Chrome Bore) marked barrel. Ar-15 16" Complete Upper Recevier Colt. Free shipping and returns on Carry Handle Upper Receiver,. ⭐️⭐️⭐️⭐️⭐️ If you searching for special discount you will need to searching when special time come or holidays. However, this brand has been in operation ever since making firearms like rifles and guns. The forward Tri-Rail is still the most common method of mounting IR lasers in the Canadian Forces, but Colt Canada has been marketing their IUR as an armory level upgrade to their various customers. To mount a standard pin upper on an SP1 lower you need something called an "offset pin. , he commented on the lack of T-slot markings and a "C" forge mark on the upper next to the keyhole forge mark. Not included but for sale 2 colt mags, reproduction 633 stock. Find more Good Sale and More Promotion for Ar6951 Upper Receiver, Flattop Smg 9mm Colt Online Best Reviews bullets This will be Ar6951 Upper Receiver, Flattop Smg 9mm Colt Sale Brand New for the favorite. from a maketprice standpoint, is there any real difference between Colt forging marks, C raised A Alcoa C raised AF Anchor Harvey C raised Cerro (keyhole, Omega) C raised Brass (square) C stamped Brass (square) Those are the ones in my collection, I am sure there are more. Rmr Dual-Illumination Sights Trijicon. The barrel is Colt's standard 11. The Colt, SP-1 is a classic. Conversion Kits are available in both the standard upper receiver with handguard configuration and Monolithic 1-piece upper receiver. To put a flat top upper on your Colt lower. These push pins are smaller than the screw pin system used on Colt AR15's and Sporters through the early 90's. CARB COLT review. Colt model 603 M16A1 Upper Receiver Assembly - with Forward Assist. Daniel Defense Mk18 upper receiver. ⭐️⭐️⭐️⭐️⭐️ SHOPPING Carry Handle Upper Receiver,. "Today, if you do not want to disappoint, Check price before the Price Up. Pricing information ofCarry Handle Upper Receiver,. These forging marks have the appearance of either a raised square, a raised keyhole, or a raised A with broken arches. 00 Out of Stock. Shotgun Sling Mount Gg&g, Inc. This upper feature's Colt's new monolithic upper receiver. The rear 1. This is to prevent someone from just stamping it with a "C" stamp. Trg, Tikka T3x Direct Isms Mount Spuhr. The "raised C" mark is from years back. Roll mark: Colt's Cage Code. Carb Colt is best in online store. The "C" was stamped, not raised. If you find product , Deals. 5" Upper Rcvr & Bbl Assembly Colt Buy M4 5. Ar-15 Stripped Upper W/marking No Forward Assist Aero Precision. un fired no box - Answered by a verified Firearms Expert. JUST IN! Colt M4 Stripped Upper Receiver (P/N SP63528) Better referred to as Colt Cage Code Upper receiver, these are Brand New we have a VERY LIMITED AMOUNT left so DONT waste time if your wanting a true Colt part, W/ S. The upper is the flat-top with a front tower sight. Free shipping and returns on "Colt M4a2 14 5 Quot Complete Upper For Sale Gunsamerica Com Online Wholesale" for you purchase it today !. Ar-15 16" Complete Upper Recevier Colt Reviews & Suggestion. Research before buy online Ar-15 16" Complete Upper Recevier Colt Make sure the shop keep your private information private before you buy Ar-15 16" Complete Upper Recevier Colt Make sure you can proceed credit card online to buyAr-15 16" Complete Upper Recevier Colt as well as the store protects your information from fraudulents. Most of the time, the mass develops slowly. Hudson River Trading brings a scientific approach to trading financial products. We've additional information about Detail, Specification, Customer Reviews and Comparison Price. Handguards are original USGI, upper is a Colt C H marked, barrel is an original Colt C MP Chrome Bore marked A1 Barrel (1974-1982 M16A1). The upper receiver with the new 13629 numbers which are Colt's cage code are the latest markings, their older markings like on my two older LE6920 M4 carbines was marked with C, you have a genuine Colt upper receiver made in the Hartford, CT factory. Accepts mil spec parts 6061-T6 aluminum **This item requires an FFL to transfer and is restricted by the BATFE. Ar6951 Upper Receiver, Flattop Smg 9mm Colt On Sale. Upper is in very good condition, less than 1000 rounds fired through it. Description: Selling my upper receiver to my Colt LE6940. M-16 upper receiver with numbered rear sight knob and raised arrow directional markings. So I followed some advice from someone with literally 1000X my experience (I was raised in a hunting society). 56 COLT review. In our full review of the Colt Canada Integrated Upper Receiver (IUR) AR15 style rifle we cover the pros and cons of the rifle. 315" spec, so as to preclude use of military uppers on civilian lowers. Some people are need it Ar15a4 Upper Rcvr, Flattop, Mod. Same as the others, used, slight cosmetic wear, old school raised C stripped upper. While the item may be priced similarly at different shops.