Troy AR-10 TRX-308 Extreme BattleRail DPMS High Profile Receiver 12" Aluminum Black STRX-E3A-12BT-01

Troy Industries
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The new Troy TRX-308 BattleRail is built off the revolutionary TRX Extreme and brings the same sleek, lightweight, low-profile design to the more powerful .308 platform. Proprietary barrel nut provides superior strength. Includes handguard, barrel nut and three quick-attach rails. Machined from 6061-T6 hardened aircraft aluminum and finished in MIL-SPEC Type III hard coat with Teflon. Removal of barrel nut assembly and front sight block required

Note: Not compatible with RRA LAR -8.

Specifications and Features:
Weight w/barrel nut: 12.15oz.
Weight w/o barrel nut: 10.6oz.
Exact Length: 12.2
Number of rail slots: 31
Inner diameter: 1.61
Outer diameter: 1.8
Diameter of cooling hole: .5
Number of cooling holes: 86
Gas tube channel diameter: .5
Gas tube channel height: .43-HP, .35-LP
Material: 6061 T6 Aluminum
MIL-A-8625 Type III Class 2 Hard Coat Anodized with Teflon

How to tell what type of DPMS LR-308 receiver you have:
Important: DPMS, Bushmaster, and Remington may have two different height upper receivers. Please download PDF to determine which receiver you have before purchasing: 308 COMPARISON (Right Click to save as)

The new Low Profile upper receiver has a 1/8" wide top portion where the charging handle is installed.

The older High Profile upper receiver has a 3/16" wide top portion where the charging handle is installed.