Brownells XM177E2 Complete Upper Receiver 12.7 inch 1-7 Twist

Description

Product Overview

Brownells XM177E2 complete upper receiver is built for retro-style AR builds with an M16A1-pattern upper and XM177E2 moderator-inspired flash hider. This 12.7 inch, 1-7 twist configuration uses a chrome-lined 5.56mm NATO barrel and includes a manganese phosphate mil-spec bolt carrier group for a correct, carbine-focused look and function.

Key Features

• M16A1-pattern upper receiver with tear drop forward assist and A1 rear sight compatibility
• XM177E2 moderator inspired flash hider with grenade ring style muzzle device
• 12.7 inch barrel with 1-7 twist for stabilization with heavier 62gr and up bullets
• Chrome-lined bore and chamber for durability and reliable performance
• Factory 12.7 inch configuration uses a pinned and welded muzzle device to reach a 16 inch+ overall length
• Carbine black polymer handguards with heatshields emulating classic XM/CAR style contours during retro builds

Upgrade your retro build with a complete XM177E2 upper receiver that matches the classic configuration details. Add this Brownells upper to your project and keep your build period-correct.