Upper Receivers

Assembled Upper Receiver

837 products

Complete Upper Receivers

1 product

Stripped Upper Receiver

95 products

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Battle Arms Development

Battle Arms Development Workhorse, 556 NATO, 10.5" Barrel, Anodized Finish, Black

Built with precision and reliability in mind, the Battle Arms Development BAD 10.5 UPR WRKHORSE 556AMBI C BLK ensures smooth operation with its robust construction. This complete upper receiver is...

MSRP:

Was:

Now: $724.95

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Primary Weapons

Primary Weapons MK114 Mod 1-M, 6mm ARC, Receiver, Complete Long Stroke Piston Upper, Black

The Primary Weapons Systems MK114 Mod 1-M Complete Long Stroke Piston Upper Receiver in Black is built around PWS’s proven long stroke gas piston system for smooth, reliable operation. This assembled...

MSRP:

Was:

Now: $1,299.95

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American Tactical

American Tactical Alpha Maxx 410 Upper Pistol Kit Gen 3, .410 Bore, 5 Rds, Receiver, Poly MLOK, Black

The American Tactical ATI Alpha Maxx 410 Upper Pistol Kit Gen 3 converts a standard mil-spec AR-15 lower into a compact .410 gauge platform for smooth, controlled shooting. This complete upper...

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Now: $459.95
Primary Weapons

Primary Weapons Systems MK111 MOD 1-M Upper, UNKNOWN, Receiver, Long-Stroke Gas Piston, Black

The Primary Weapons Systems MK111 MOD 1-M Upper Receiver, 338 ARC, 11.85" Long-Stroke Gas Piston, Black is a compact, hard-running upper built around PWS’s proven long-stroke gas piston system. Its...

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Now: $1,299.95
Aero Precision

Aero Precision M4E1-T Pro Upper Receiver Group, 5.56 NATO, Receiver, Black

The Aero Precision M4E1-T Pro Upper Receiver Group 16" Black is a complete, ready-to-run assembly built around the M4E1 threaded upper and a rigid MOD 4 free-float M-LOK handguard. Its cold hammer...

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Now: $1,180.00
American Tactical

American Tactical Alpha Maxx 410 Upper Shotgun Kit Gen3, .410 Bore, 5 Rds, Receiver, Black

The American Tactical Alpha Maxx 410 Upper Shotgun Kit transforms a standard mil-spec AR-15 lower into a smooth-shooting .410 bore shotgun platform. This dedicated upper features an 18.5" smooth bore...

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Now: $459.95
Aero Precision

Aero Precision M4E1-T, 5.56 NATO, Receiver, Complete Upper, Flat Dark Earth

The Aero Precision M4E1-T Complete Upper Receiver with ATLAS S-ONE Handguard and 12.5" barrel in Flat Dark Earth is built for shooters who want a compact, lightweight AR-15 upper without sacrificing...

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Now: $655.00
Primary Weapons

Primary Weapons MK111 Mod 1-M Upper, 5.56 NATO, Receiver, Long-Stroke Piston, Free-Float M-LOK Handguard, Black

The Primary Weapons Systems MK111 Mod 1-M Upper Receiver brings the proven PWS long-stroke piston system to a compact AR-15 platform. Built on fully forged 7075-T651 aluminum receivers with a...

MSRP:

Was:

Now: $1,299.95
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Primary Weapons

Primary Weapons MK118 Mod 1-M, 6mm ARC, Receiver, Black

The Primary Weapons Systems MK118 Mod 1-M Complete Upper Receiver in 6mm ARC brings a refined, piston-driven upgrade to the AR-15 platform. Built around an 18-inch threaded barrel and PWS’s proven...

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Was:

Now: $1,299.95

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TacFire

TacFire UP01C, 5.56 NATO, Stripped Upper, Black

The TacFire UP01C Stripped Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15 provides a solid foundation for your next AR-15 build. Machined from durable 7075-T6...

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Now: $75.12
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TacFire

TacFire BU-308-20, .308 WIN, M-LOK Handguard, Black

The TacFire BU-308-20 Rifle Upper Assembly brings a ready-to-run .308 Win AR-platform upper together in one complete package. Built around a 20" black nitride barrel and a black anodized 7075-T6...

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Now: $530.77

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Luth-AR

Luth-AR UR-01-E3-M4, 5.56 NATO, A1 Stripped Upper, 7075-T6 Aluminum, Black

The Luth-AR UR-01-E3-M4 A1 Stripped Upper Receiver brings a classic C7-style profile to modern AR-15 builds. Forged from 7075-T6 aluminum and finished in a durable black hardcoat anodize, this upper...

MSRP: $159.95

Was:

Now: $150.35