AR15/M16 7.5" Rxa15 SS Mod Upper Receiver

Best price

$249.99at Brownells

checked Sep 30, 2026

Buy at Brownells

Where to buy

Store	Price	Availability	Buy	Add to build
Brownells	$249.99checked Sep 30, 2026	Check store	Buy at Brownells

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

About this part

The AR15/M16 7.5" Rxa15 SS Mod Upper Receiver is a 7.5" AR-15 upper receiver from Red X Arms. One store lists it, Brownells at $249.99.

Fits and works with

Barrel length: 7.5" · Handguards

Specifications

Manufacturer: Red X Arms
Platform: AR-15
Barrel length: 7.5"
Length: 5

From the manufacturer

Upper Receiver assemblies complete with barrel, gas block and handguard installed. These upper receivers feature 416R stainless steel barrels, with 1-9 twists and chambered in 5.56mm. Barrel extensions and upper receiver include M4 feedramps. Upper receiver is forged 7075-T6 aluminum and has T-Marks. M4 and 7.5" models feature stainless steel A2 flash hiders, 1/2-28 threads, modular handguard compatible with Magpul rails and .750" gas blocks. All upper receivers do not include a charging handle or bolt carrier group.All NFA Rules apply.