
Description
Based on popular carbine configurations, these XM177E2 Upper Receivers are ready for your next Retro build. The muzzle of the XM177E2 Upper Receiver, is capped by the classic XM177E2 moderator inspired flash hider, with ports around its radius. This muzzle device is a flash hider, unlike the original XM177 muzzle device, which was technically a suppressor. The flash hider is attached to a lightweight 11.5 or 12.7 inch barrel. Why 12.7 inch? The 12.7 inch model has its muzzle device pinned and welded in place, allowing the overall length of the barrel to reach the required 16" for a rifle. Barrels are available with a 1-12 or 1-7 twist. Select 1-12 if shooting 55gr bul Mfg: Brownells Bundles
Specifications
- Part Type
- optic_accessory
More from Brownells Bundles

Brownells Bundles
Xm177e2 11.5''''Adeg W/Colt Optic - Brn Xm177e2 5.56mm 11.5''''bbl 1-12 Twt Upper Pin/Weld W/4x21mm
$1400

Brownells Bundles
Xm177e2 12.7'''' Carbine Length Pinned/Welded W/Colt Ar-15 Optic - Brn Xm177e2 5.56mm 12.7'''' Bbl 1-7 Twt Upper Pin/Weld W/4x21mm
$1500

Aimpoint
Aimpoint PRO Patrol Rifle Optic
$497

Vector Optics 2007
X-Accu 30mm 1.4" High Profile One Piece Picatinny Mount
$35

Vector Optics 2007
Offset Air Bubble ACD Weaver Mount
$8

Vector Optics 2007
Offset Air Bubble ACD Dovetail Mount
$8
Brownells Bundles
Xm177e2 11.5''''adeg W/Colt Optic - Brn Xm177e2 5.56mm 11.5'''' Bbl 1-7 Twt Upper Pin/Weld W/4x21mm
Starting at
$1399.99
1 in-stock retailer
Compare Prices
- BrownellsLOWESTIn stock$1399.99Buy
Affiliate disclosure: some links on this page are affiliate links. If you buy through them, we may earn a commission at no extra cost to you. Our editorial process and scoring is not influenced by commissions. See our affiliate policy.