Upper Receivers and Parts

Chambered in 45 acp, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 45 ACPSights: None, Optic ReadyBarrel Length: 7"Barrel Finish: Black...

Chambered in 5.56, this rifle upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

Chambered in 9mm, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 9mm LugerSights: Optic ReadyBarrel Length: 4"Barrel Finish: Black...

Chambered in 5.56, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 7"Barrel Finish: Black...

The sbur04 matches all of our lower receivers perfectly and has a mil-spec front end that is compatible with any ar15 barrel nut & any ar15 handguard out there, including those with rear facing tabs.This receiver is meant for.223, 5.56,.224 valkyrie,...

Machined to tighter than mil-spec tolerances, ggp's forged lower functions with nearly all available ar-15 parts kits and lowers.It is fachined from forged 7075-t6 aluminum with m4 feedramps,.250" takedown pin holes, and engraved t-marks.Note: requires...

The monobloc upper features a hm barrel with an integral machined patented gas block, and a carbine gas system.It is also 4150 chromoly, match grade, tripled honed, and button rifled.Its handguard is free-floating and uses a picatinny rail, magpul m-lok,...

The monobloc upper features a hm barrel with an integral machined patented gas block, and a carbine gas system.It is also 4150 chromoly, match grade, tripled honed, and button rifled.Its handguard is free-floating and uses a picatinny rial, magpul m-lok,...

Anderson's aor 16" 6.5 grendel complete upper: comes with a 16", 6.5 grendel barrel, 1-8 twist, carbine gas system, 5/8"-24 threads, 7075 t6 forged upper receiver, a2 plastic carbine handguard, 308 a2 flash hider, standard charging handle and 6.5 bcg.The...

The ar upper receiver comes with a forward assist and ejection port cover assembly installed.It is forged from 7075-t6 aluminum with a dry film lube interior.Note: requires charging handle, barrel, handguard, gas block, muzzle device, gas tube and bcg...

ATI ATIHUP200 Omni Hybrid Multi-Caliber Polymer Black Receiver for AR-15

Standard upper parts kit includes: ejection port door, ejection port door rod w/ c-clamp installed, ejection port door spring, forward assist, forward assist spring, forward assist roll pinModel: Upper Parts Kits

Top off your next build with this resolute mk4 upper group.Chambered, this upper group is a staple for any collection and comes ready to pair with the ar15 lower group of your choice.Receiver Finish: Midnight BronzeCaliber: 300 BlackoutBarrel Length: 16...

Dont build a.22 lr that looks like an ar, build an ar that happens to be chambered in.22 lr.This banshee upper group is built on the mk4 platform, and is designed to work with any standard ar15 lower group and use.22 ar conversion mags.Receiver Finish:...

Dont build a.22 lr that looks like an ar, build an ar that happens to be chambered in.22 lr.This banshee upper group is built on the mk4 platform, and is designed to work with any standard ar15 lower group and use.22 ar conversion mags.Receiver Finish:...

Top off your next build with this resolute mk4 upper group.Chambered, this upper group is a staple for any collection and comes ready to pair with the ar15 lower group of your choice.Receiver Finish: Midnight BronzeCaliber: 5.56x45mm NATOBarrel Length:...

Dont build a.22 lr that looks like an ar, build an ar that happens to be chambered in.22 lr.This banshee upper group is built on the mk4 platform, and is designed to work with any standard ar15 lower group and use.22 ar conversion mags.Receiver Finish:...

Top off your next build with this resolute mk4 upper group.Chambered, this upper group is a staple for any collection and comes ready to pair with the ar15 lower group of your choice.Receiver Finish: Armor BlackCaliber: 5.56x45mm NATOBarrel Length: 16...

Top off your next build with this resolute mk4 upper group.Chambered, this upper group is a staple for any collection and comes ready to pair with the ar15 lower group of your choice.Receiver Finish: Armor BlackCaliber: 300 BlackoutBarrel Length: 16...

Caliber:.350 legendupper receiver:forged a4barrel:16 inch stainless steel, 1:16 twist, cryogenically treatedmuzzle device:rra operator brake, 1/2-36 threadgas block:low profile gas block, car length gas systemhandguard:rra 13 inch extended lightweight...

Caliber:.450 bushmasterupper receiver:forged a4barrel:16 inch stainless steel, 1:24 twist, cryogenically treatedmuzzle device:rra operator brake, 5/8-32 threadgas block:low profile gas block, mid-length gas systemhandguard:rra 13 inch extended...

Caliber:.223 wylde chamber for 5.56mm and.223 caliberupper receiver:forged a4barrel:18-inch heavy match stainless steel, cryogenically treated, 1:8 twistmuzzle device:rra operator muzzle break / 1/228 threadgas block:low profile gas blockhandguard:rra 13...

Lbe unlimited is a leading producer of us made gun parts and accessories, particularly for the ar-15 platform.Whether you're in the middle of an ar build or you're just looking to upgrade a key component, lbe has you covered with reliable parts and...

Angstadt arms complete upper receiver pistol assembly is ready with any 9mm ar-15 lower receiver.Featuring the same high quality parts that go into the udp-9 pistol, this completed upper receiver is compatible with both glock and colt style 9mm magazines...

Ati alpha maxx 410 upper shotgun kit gen3 3" 410ga 18.5" bbl smooth bore 13" poly mlok f/u sight 5rdReceiver Finish: BlackBarrel Length: 18.50"

Introducing the alexander arms 6.5 grendel upper kit.The kit includes: mil-spec flat top upper receiver (port door and forward assist installed), our very own high quality 16" stainless, extreme lightweight barrel with a 1:8 twist, threaded 5/8-24 tpi...

The tactical solutions x-ring takedown vr receiver is a lightweight.22 lr receiver for the ruger 10/22 takedown and for tactical solutions x-ring semi-automatic.22 rifles.Milled from 6061-t6 aluminum, the x-ring takedown vr receiver is manufactured with...

Aim sports ar complete upper 5.56x45mm nato black nitride 15" m-lok - the ar complete upper receiver with bcg features a mil-spec anodized upper with 16" socom profile 4150 chorme moly vanadium barrel, and 15" m-lok free-float handguard.The barrel also...

Tacfire up01-c2: ready to be built into your next upper, this kit includes a black anodized 7075 t6 aluminum stripped upper receiver, forward assist assembly, dust cover assembly, and a2 style charging handle.The only thing you need to finish your upper...

The aim sports inc complete lower parts kit was designed to be the ideal lower receiver for anybody attempting to enhance the quality of their shooting experiences.These ar15 lower parts from the specialists at aim sports inc are made using the kinds of...

7 piece standard upper parts kit includes: dust cover, dust cover spring, dust cover pin, dust cover, c-clip, forward assist, forward assist spring, forward assist roll pinModel: Upper Parts Kits

Mil-spec forged 7075-t6 completely assembled upper rec.Type iii hard coat anodized for maximum durability.M4 barrel extensions.10.50" 4150 cmv steel and bolt is 9310 tool steel.Both are nitride finish with excellent lubricity and corrosion resistance...

Mil-spec forged 7075-t6 completely assembled upper rec.Type iii hard coat anodized for maximum durability.M4 barrel extensions.10.50" 4150 cmv steel and bolt is 9310 tool steel.Both are nitride finish with excellent lubricity and corrosion resistance...

Chambered in 300 blackout, this rifle upper is completely built and ready to be put on a lower.Includes bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 300 BlackoutSights: None, Optic ReadyBarrel Length: 10"Barrel Finish: Black...

Chambered in 308 win, this rifle upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 308 WinSights: None, Optic ReadyBarrel Length: 20"Barrel Finish: Black...

Chambered in 300 blackout, this rifle upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 300 BlackoutSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

Get this forged upper rec for you ar-platform today in a black anodized finish.Receiver Finish: Black AnodizedType: Stripped

Chambered in 308 win, this rifle upper is completely built and ready to be put on a lower.Includes bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 308 WinSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

Chambered in 9mm, this rifle upper is completely built and ready to be put on a lower.Includes bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 9mm LugerSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

Chambered in 9mm, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 9mm LugerSights: None, Optic ReadyBarrel Length: 7"Barrel Finish: Black...

Chambered in 5.56, this pistol upper is completely built and ready to be put on a lower.Includes a bolt carry group.Receiver Finish: Black AnodizedType: CompleteCaliber: 5.56x45mm NATOSights: None, Optic ReadyBarrel Length: 5"Barrel Finish: Black...

Chambered in 45 acp, this rifle upper is completely built and ready to be put on a lower.Includes a bolt carrier group.Receiver Finish: Black AnodizedType: CompleteCaliber: 45 ACPSights: None, Optic ReadyBarrel Length: 16"Barrel Finish: Black...

The monobloc upper features a hm barrel with an integral machined patented gas block, and a carbine gas system.It is also 4150 chromoly, match grade, tripled honed, and button rifled.Its handguard is free-floating and uses a picatinny rial, magpul m-lok,...

Receiver upper ar15 anodized.Mil-spec.Finish: Hardcoat Anodized

Complete upper lw 16" mlok.Caliber: 223 Rem | 5.56 NATOBarrel: 16"Receiver: A3 Flat TopSights: None

Dissipator flat top upper 16".Caliber: 223 Rem | 5.56 NATOBarrel: 16"Receiver: A3 Flat TopSights: A2 Front Sight

Complete upper 16" flattop hvy.Caliber: 223 Rem | 5.56 NATOBarrel: 16"Receiver: A3 Flat TopSights: A2 Front Sight

Complete upper 20" flattop hvy.Caliber: 223 Rem | 5.56 NATOBarrel: 20"Receiver: A3 Flat TopSights: A2 Front Sight

Complete upper 16" m4 flat top.Caliber: 223 Rem | 5.56 NATOBarrel: 16"Receiver: A3 Flat TopSights: A2 Front Sight

Wsm15 billet upper black.Finish: Armor Black CerakoteReceiver: Billet Aluminum

Bravo zulu 350leg 16" upper.Caliber: 350 LegendBarrel: 16"Finish: BlackSights: Optics Ready

Bravo zulu 5.56 16" upper.Caliber: 223 Rem | 5.56 NATOBarrel: 16"Finish: BlackSights: Optics Ready

Bravo zulu 450bm 16" upper.Caliber: 450 BushmasterBarrel: 16"Finish: BlackSights: Optics Ready

Bravo zulu 450bm 20" upper.Caliber: 450 BushmasterBarrel: 20"Finish: BlackSights: Optics Ready

M4 patrolman 16" upper rec..Caliber: 223 Rem | 5.56 NATOBarrel: 16"Finish: Salt Bath NitrideReceiver: Flat TopSights: A2 Front/Carry Handle Rear

Receiver upper parts kit ar-15.