AR-15 Upper Parts

Faxon Firearms 18" GUNNER 5.56 NATO Rifle-Length 4150 Nitride / Melonite Barrel The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. Proving that every once and awhile, the Government can do something right,...

Faxon Firearms 6.5 Grendel 9310 Bolt Carrier Group Complete - Nitride Bolt: Type II (.136") bolt 9310 Tool Steel Construction (Stronger than C158) Full MIL-SPEC Heat Treatment Shot Peened to MIL-SPEC Magnetic Particle Inspection (MPI) Back of Lugs...

Faxon Firearms RemAge Remington 700 8.6 BLK 16" Modified Light Palma Profile Barrel Faxon Firearms is proud to partner with Q on the development of barrels for their revolutionary new round, 8.6 Blackout (8.6 BLK).With barrels employing an impressive 1:3...

Forward Controls Design EPC AR-15 Billet Dust Cover We had resisted making a Forward Controls version of ejection port cover, mainly because we were preoccupied with other projects, but when we had a moment to list the things we wanted on an FCD version,...

Free Float M-LOK ASAL Handguard - 15" Precision Performance, Minimal Weight Upgrade your AR-15 with the 15" Free Float M-LOK ASAL Handguard, engineered for lightweight strength and advanced functionality. Crafted from rugged 6061 aluminum and finished in...

KAK Industry K-SPEC AR-15 5.56/.223/300BLK Bolt Carrier Group - Chrome Lined Phosphate The K-SPEC BCG combines multiple key features focused on increasing the reliability of your AR15 style firearm no matter if you are running suppressed or...

ODIN Works QD Flash Hider Suppressor Mount Introducing The OSM-FH-5 for 5.56! Two functions in one easy-to-use product! Cleverly created and aesthetically superior, the OSM Flash Hider & Suppressor Mount makes installing a suppressor fast and easy...

Riflespeed AR-15 Straight Gas Tube A high-quality gas tube is a must to keep your rifle running perfectly. Choose a RIFLESPEED premium-quality straight gas tube for use with the innovative line of Riflespeed Gas Controls on the AR15 or AR10 rifle...

Rise Armament RA-703 .223/5.56 Veil Flash Hider - Black Nitride RA-703 .223 Veil Flash Hider 4 Prong Minimizes muzzle flash to counteract the flash's negative effects on the shooter's night vision Proprietary design virtually eliminates the annoying...

Rosco Manufacturing Bloodline 16" Midlength 5.56 Sauce Pack Getting the perfect components to finish your build can sometimes be a pain, especially if you find yourself with parts that you thought should work together that somehow don't when you...

Strike Industries Japan Type 89 COMP 2.0 for .308/7.62 Caliber The SI JCOMP Gen2 is the classic Type 89 compensator re-engineered and updated for the 21st century. Due to end user feedback, the favorite features of the original are retained, but the J...

Strike Industries Venom .308/7.62 Flash Hider Own one of the world's most effective flash hiders! The Strike Industries VENOM FH nearly eliminates 100% of your muzzle flash and quickly disperses the burning gases exploding from the barrel. This...

16" 5.56 NATO 1:9 Twist Phosphate Carbine M4 Barrel Precision without the premium price—crafted to exceed expectations. The BRD 16" 5.56 NATO 1:9 Twist Phosphate Carbine M4 Barrel offers exceptional performance at an unbeatable price. Proudly made...

9mm Bolt Carrier Group - Black Nitride Building a 9mm rifle? This 9mm Bolt Carrier Group (BCG) ensures smooth cycling and reliable performance. Machined from 8620 steel and finished with a durable QPQ Black Nitride coating, it offers longevity and...

Aero Precision AR-15 Breach Ambi Charging Handle w/ Small Lever - Black/Kodiak Brown The Aero Precision BREACH® is a rugged, ambidextrous, precision-manufactured charging handle for the AR15 platform. The BREACH's design utilizes a reinforced...

Aero Precision M4E1 Threaded Assembled Upper Receiver - Sniper Grey Cerakote The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same...

Ballistic Advantage 13.9" 5.56 NATO Government Barrel Upgrade your firearm's performance with the Ballistic Advantage 13.9" 5.56 NATO Government Barrel. Precision-engineered from 4150 Chrome Moly Vanadium steel, this mid-length modern series barrel is...

Ballistic Advantage 20" .223 Wylde Barrel This Ballistic Advantage .223 Wylde chambered 20-inch AR 15 barrel is machined from 416 Stainless Steel with a QPQ finish. Our Premium Black Series Barrels feature a Nickel Boron Coated Extended M4 Feed Ramp...

Ballistic Advantage 8.3" 9MM Modern EPC Series AR-15 Barrel 1:10 Twist This Ballistic Advantage EPC Straight Profile Modern Series Barrel is machined from 4150 CrMoV steel with a QPQ Corrosion Resistant Finish and 1/2-28 x .4" full profile threads...

Bootleg Inc AR-15 .750 Low Profile Gas Block - Black Nitride Fine tune your AR’s gas system with a Bootleg, Inc. Low Profile Gas Block! Regulate your AR’s gas from the initial combustion back to the bolt carrier group, helping your rifle...

Breek Arms 3FO-S Short Outside Flash Hider Breek Arms’ lineup of Outside Threaded Muzzle Devices is an affordable upgrade that gives you the option to run a flash hider or muzzle brake while utilizing our Breek Arms Castle Blast Shield as a forward...

Centurion Arms C4 Quad Rail Handguard - 12"/Front Sight Cutout Contrary to popular belief, two-piece quad rail handguards are not disappearing from the market and still offer many benefits like full length picatinny rails that provide a solid mounting...

Dirty Bird .750 Low Profile Steel Gas Block - Black Nitride Don't let the simplicity of a gas block's function fool you, it is possible to make a bad one. They must handle high gas pressures and extreme heat so using sub-par materials is out of...

Dirty Bird AR-15 5.56/.223/300BLK Bolt Carrier Group Phosphate/Chrome-Lined The Dirty Bird AR-15 Bolt Carrier Group comes fully assembled and ready to be dropped in. The carrier body is machined from 8620 steel, heat treated, & MP inspected...

Dirty Bird Carbine Stainless Steel Gas Tube Stainless Steel Gas Tube for AR15 & AR10 rifles Roll pin included Carbine length Made in the USA

Faxon Firearms 10.5" 5.56 NATO Carbine-Length 4150 Barrel Each and every Faxon Barrel goes through a battery of tests at each fabrication operation until it is finished in Nitride and then inspected. Every barrel is individually checked for headspace by...

Faxon Firearms 16" Gunner 5.56 NATO Barrel w/ Integral Slim 3 Port Brake Faxon's Integral Rifle Barrels are the perfect choice for any shooter who is looking for the maneuverability of a shorter overall length, but want the compatibility and versatility...

Faxon Firearms 5.56 LIGHTWEIGHT 9310 Bolt Carrier Group Complete - Nitride When looking at lightweight bolt carrier groups, we were unsatisfied with what the market had to offer. Seeing a capability gap, we set out to create a bolt carrier group that...

Faxon Firearms AR-10 3 Screw .875 Low Profile Gas Block The Faxon Gas Block, AR-10 Height, 3 Screw, QPQ, .875 is a top-quality gas block designed for use with AR-10 rifles. Made from high-quality steel and finished with a QPQ coating, this gas block is...

Faxon Match Series Firearms 20" Heavy Fluted 6mm ARC Rifle 416-R Stainless Nitride / Melonite 5R Nickel Teflon Extension Barrel The Gunner profile is a blend of two of the best performing profiles of all time, Gov't and Pencil. Faxon's Gunner profile...

Fortis 9MM Muzzle Brake - Black The sharp lines of our brand inspired our new Fortis Muzzle Brake. Like many of our products, the machining on this brake takes a lot longer than the competition. We take our time to create the very best products out there...

Forward Controls Design 6315RF Flash Hider - Plan B Suppressor Mount The 6315RF (Revival Defense, Forward Controls) is a Closed-Tine, Closed-Bottom, Flash Hider and "Plan B" Compatible Tapered Suppressor Mount.   The 6315RF is a collaboration...

Forward Controls Design RHF AR-15 Free Float M-LOK Handguard The Forward Control Design RHF Handguard is a lightweight, free float rail system for AR-15 platforms. Machined from 6000 series extruded aluminum, the RHF is a sturdy yet lightweight free...

ODIN Works 16" 9mm SuperLite Barrel The ODIN Works Super Lite 9mm PCC barrels are the best "high speed, low drag" barrels you will find on the market.  Made in Boise, ID from 416 stainless and 6061 aluminum, these barrels look and shoot great...

ODIN Works Enhanced 9mm Stainless Steel Bolt Carrier Group Introducing our new ODIN Works Enhanced Series, 9mm bolt carrier group. Innovative and unlike anything in the industry, this feature packed bolt carrier group is the new standard. Features like a...

ODIN Works R2 M-LOK Free Float Handguard Strong, Lightweight, and Uniquely Designed for Fast Installation The R2 Forend is the more simplified geometric evolution of the rugged Ragna Forend design. Engineered to deliver the fastest possible install, the...

Purebred 10.5" 300 Blackout Barrel: This Rosco Purebred 10.5" 300 Blackout Barrel was designed for SBR/ Pistol use in conjunction with suppressors. The 10.5” Rosco barrel was made to be a direct precision replacement for any MK 18 platforms that...

Stag Arms A3 Flattop Left-Handed Upper Receiver Assembly The Stag Arms A3 upper receiver assembly is our very first Left-Handed upper receiver, available on ar15discounts.com. It is made to mil-spec standards and includes a picatinny rail...

.936 Low Profile Gas Block - Black Nitride The .936 Low Profile Gas Block - Black Nitride ensures an efficient and reliable gas system for your AR-15 or .308 build. Paired with our gas tubes, it delivers optimal performance and durability...

8" .45 ACP Medium Black Nitride Barrel Black Rifle Depot prides itself on partnering with premier machine shops and barrel manufacturers across the USA. When we discover a barrel maker that meets our exacting standards, we proudly private label their...