PSA 16" Midlength 5.56 NATO 1:7 Nitride 13.5" Lightweight M-LOK Upper With BCG, CH, & MBUS Sight Set

Upper Receiver

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Best price

$389.99at 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	$389.99checked 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.

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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	$389.99	$389.99	$389.99

Since Sep 28, 2026.

About this part

The PSA 16" Midlength 5.56 NATO 1:7 Nitride 13.5" Lightweight M-LOK Upper With BCG, CH, & MBUS Sight Set is a 16" 5.56 / .223 upper receiver. One store lists it, Palmetto State Armory at $389.99.

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: Mid-length · Handguards
Barrel length: 16" · Handguards
Handguard length: 13.5" · Barrels

Specifications

Platform: AR-15
Barrel length: 16"

From the manufacturer

Barrel: 16" barrel length Chambered in 5.56 NATO, with a 1:7 twist, M4 barrel extension, and a mid-length gas system. The A2 profile barrel is finished with Melonite. Barrel is finished off with an .750" diameter low-profile gas block, PSA 13.5" Lightweight M-Lok Free Float Rail and an A2 flash hider.
Upper: Forged 7075-T6 A3 AR upper is hard coat anodized black for durability. Featuring M4 feedramp cuts, these upper upper receivers are made for us right here in the USA.

Bolt Carrier Group: For AR15 and M16 rifles and carbines. Bolt is made of shot-peened, Mil-spec Carpenter 158® steel. Gas key is secured with grade 8 fasteners and staked. Bolt carrier is parkerized outside and chrome lined inside. Includes Charging Handle.
Includes: Magpul® MBUS Sight Set, Black