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AR-15 Upper Receiver Parts

AR-15 Upper Receiver Parts

Find all the upper receiver parts you need to finish your AR-15 build here. We carry upper receiver complete parts kits, or you can purchase individual components like forward assists, dust covers, charging handles, bolt carrier groups and more!

Adams Arms P2 UPPER 5.56 16IN ADJ

$880.49
Available Online In Limited Quantities

The Adams Arms P2 model is a tactical, battle-ready model in the P-Series lineup. The P2 Upper includes an ergonomic free-float rail that covers the P-Series Micro Block piston system. It features a Manimal flash hider and an ambidextrous charging handle...

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Aero Precision .750 Low Profile Gas Block

$21.19
Available Online

Aero's Low Profile Gas Block is constructed from 4150 hardened steel with steel set screws which are 10-32 x 3/16 knurled cup point. This model is compatible with .750 outer diameter barrels and has a black finish with phosphate coating. NOTE: A...

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Aero Precision AR-15 Bolt Carrier 5.56mm

$138.99 $123.49
Available Online

This bolt carrier is a valuable addition to your AR15 build. It features a Mil-Spec phosphate coating, properly staked gas key with a chrome lined gas key and firing pin channel, a black o-ring insert on the extractor, and is made of steel.Category :...

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Aero Precision AR-15 Upper, Stripped, Black GEN2

$78.29
Available Online

The M4E1 Threaded Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. It is threaded to accept a standard AR15 barrel nut and forged from 7075-T6 aluminum and precision machined to work...

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Aero Precision M5 .308 Bolt Carrier Steel, Phosphate

$245.99 $198.89
Available Online In Limited Quantities

This M5 .308 / 7.62 bolt carrier is a firing mechanism for your big-bore rifle build. It features a mil-spec phosphate finish, is made of steel, chrome lined gas key and firing pin channel, and a forward assist serrations. The bolt features double...

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Aero Precision M5 308 Winchester/7.62 NATO Brl Finish, FDE

$154.49 $136.09
Available Online In Limited Quantities

The M5 .308 Stripped Upper Receiver is the ideal upper for your big bore rifle build. Forged from 7075- T6 aluminum, this stripped upper is precision machined to accept standard .308 components. It featurs M4 Feedramps, .2795 takedown pin holes (DPMS...

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