PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-LOK Upper with BCG & CH - 516447525

Upper Receiver

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Best price

$319.99at Palmetto State Armory

checked Oct 1, 2026

Buy at Palmetto State Armory

Where to buy

Store	Price	Availability	Buy	Add to build
Palmetto State Armory	$319.99checked Oct 1, 2026	Check store	Buy at Palmetto State Armory

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

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Dashed line = out of stock. Tracking since Sep 28, 2026.

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Store	Latest	Lowest	Highest
Palmetto State Armory	$319.99	$319.99	$319.99

Since Sep 28, 2026.

About this part

The PSA 8.5" Pistol-length 5.56 NATO 1/7 Nitride 7" Lightweight M-LOK Upper with BCG & CH - 516447525 is an 8.5" 5.56 / .223 upper receiver. One store lists it, Palmetto State Armory at $319.99.

Fits and works with

Caliber: 5.56 / .223 · Shop matching ammo
Bolt: Standard AR-15 (5.56 / 300 BLK / .350 Legend) · Bolt carrier groups
Gas system: Pistol · Handguards
Barrel length: 8.5" · Handguards
Handguard length: 7" · Barrels

Specifications

Platform: AR-15
Barrel length: 8.5"

From the manufacturer

Barrel: 8.5" Chambered in 5.56 NATO, with a 1:7 twist rate, M4 barrel extension, and a pistol length gas system. This barrel is nitride treated for accuracy and durablility. It is finished off with a PSA 7" Lightweight M-Lok free-float rail, .750" diameter low profile gas block, and an A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. These uppers are made for us right here in the USA by a mil-spec manufacturer.
Bolt: Full-auto profile bolt carrier group. Milspec Carpenter No. 158® steel bolt, Shot Peened, High pressure tested, Mag particle inspected, Gas Key Hardened to USGI Specifications, Fastened with Grade 8 screws, and Staked Per Mil-Spec. 8620 steel M-16 profile carrier is chrome lined and phosphate coated.