1 to 20 of  95 products for ar 15 m16 gas piston conversion kit gas piston conversion kit mid length

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Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol

Complete Tactical Elite upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier...

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Brownells
$735.00 See It
Ar-15/M16 Bolt Rehab Kit - Ar15 Bolt Rehab Parts Kit

Caliber-specific kits contain all the parts needed to refurbish or repair bolts on AR-style rifles. AR-15 Kit contains ejector, ejector/selector detent spring, extractor, extractor spring and buffer, extractor pin, ejector roll pin, 3 gas rings and...

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Brownells
$32.99 See It
Ar-15/M16 Piston Tactical Evo Upper Receivers - Gas Piston Upper Receiver Tac Evo Mid-Length

Chambered in 5.56mm NATO, this economical, high performance upper assembly fits any standard Mil-Spec AR-15 lower. Forged from 6061 T6 aluminum, receiver features M4 feed ramps and an A4 flattop rail. The mid-length piston system offers a longer...

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Brownells
$719.99 See It
Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Carbine

Complete Base upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier and...

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Brownells
$529.99 See It
Ar-15/M16 5.56 16" Basic Piston Upper Receivers - Gas Piston Upper Receiver, Midlength

Complete Base upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier and...

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Brownells
$550.99 See It
Ar-15/M16 Lower Receiver Gunsmith Spring Kit - Lower Receiver Gunsmith Spring Kit

Tool box comes with 20 each of springs used in AR-15 lower receiver: bolt catch spring, buffer retainer spring, trigger spring, hammer spring, disconnector spring, magazine catch spring, selector spring and detent spring. Ideal for department armorers,...

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Brownells
$75.99 See It
Ar-15 16" Upper Receivers - Ar-15/M16 16" 7.62x39 A2 Carry Handle Upper

This, the original 7.62x39 conversion for the AR15 is standard with a 16" 416 SS barrel (1x10" twist) with black oxide finish, and threaded 1/2x28. 100% complete with bolt carrier assembly and charging handle, this upper is headspaced, test fired and...

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Brownells
$588.90 See It
Ar-15/M16 Stripped Lower Receivers - Ar15 Stripped Lower Receiver Blk

Machined aluminum stripped lower receivers accept standard AR-15/M16 parts, mate with standard upper receiver assemblies, and come in custom colors for custom builds. Accepts .250" pivot and takedown pins and are marked as multi caliber. Available in...

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Brownells
$119.99 See It
Weapon Accessories AR-15/M16 Flip Up Gas Block Mount Front Sight Black PM238

Pro Mag Weapon Accessories AR-15/M16 Flip Up Gas Block Mount Front Sight Black PM238. Pro Mag AR-15/M16 Flip Up Gas Block Mount Front Sight Black

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OpticsPlanet
$48.99 See It
Ar-15/M16 Lower Receiver Vise Block - Action Block & Lower Vise Block Set

Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective...

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Brownells
$79.99 See It
Ar-15/M16 Stripped Lower Receivers - Ar15 Stripped Lower Receiver Grey

Machined aluminum stripped lower receivers accept standard AR-15/M16 parts, mate with standard upper receiver assemblies, and come in custom colors for custom builds. Accepts .250" pivot and takedown pins and are marked as multi caliber. Available in...

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Brownells
$119.99 See It
Ar-15/M16 Upper Receiver Action Block - Action Block & Lower Vise Block Set

Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective...

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Brownells
$79.99 See It
Ar-15/M16 Upper Receiver Action Block - Upper Receiver Action Block

Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective...

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Brownells
$59.99 See It
Ar-15/M16 Lower Receiver Vise Block - Lower Receiver Vise Block

Heavy-duty blocks allow you to firmly clamp AR-15/M16 receiver halves in a vise without risk of crushing, twisting, or otherwise distorting them when applying vise pressure or torquing the barrel nut. Keeps your rifle secure for safe, effective...

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Brownells
$49.99 See It
Ar-15/M16 Tactical Elite Piston Upper Receivers - Gas Piston Upper Receiver, Pistol Extended Rail

Complete Tactical Elite upper receiver assembly comes ready to install on mil-spec lower receiver to produce a reliable, positive-cycling gas piston gun. Adams Arms' proven piston system doesn't vent hot gases and burned powder into the bolt carrier...

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Brownells
$699.60 See It
Ar-15 16" Upper Receivers - Ar-15/M16 16" 7.62x39 Flat-Top Upper

This, the original 7.62x39 conversion for the AR15 is standard with a 16" 416 SS barrel (1x10" twist) with black oxide finish, and threaded 1/2x28. 100% complete with bolt carrier assembly and charging handle, this upper is headspaced, test fired and...

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Brownells
$588.90 See It
Ar-15 A2 Upper Receiver Kit - Upper Receiver Kit

High-quality, mil-spec parts from a respected name in precision firearms for more than 75 years, now a premier maker of complete AR-15 rifles. Replace worn or damaged parts to return a service rifle to factory specs or use in building a precision...

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Brownells
$109.99 See It
Ar-15 A2 Upper Receiver Kit - Upper Receiver Kit

The easiest way to stock and sell genuine, mil-spec AR-15 parts, or use to assemble rifles on your receivers. Much lower in total cost than buying the parts one at a time. Kit includes: charging handle assembly, A2 rear sight assembly, forward assist...

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Brownells
$68.99 See It
Ar-15 Survival Kit - Ar-15 Survival Parts Kit

The CMMG AR-15 Survival Kit contains all the parts that should be kept on-hand, in case of a much needed repair. A great kit to keep in your range bag, or keep with your gear. Kit contains the following parts: Ejector, ejector/selector spring (2),...

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Brownells
$64.99 See It
Ar-15/M16 Upper Receivers - Ar15/M16 7.5" Rxa15 Ss Mod Upper Receiver

Upper assemblies readily fit onto standard AR-15 lowers and feature 416R stainless steel barrels that resist weather and corrosion. Chambered in 5.56, barrels feature extensions with M4 feedramps to enhance reliable operation. Uppers are flattop with...

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Brownells
$330.00 See It
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