View Full Version : Tactical Machining / Troy TRX .308 battlerail

07-01-2012, 9:17 PM
I ordered a Tactical Machining .308 upper, and am now about to order a Troy TRX battlerail. Apparently there are 2 versions of this rail, depending on the height / thickness of the DPMS-style rail. Anyone buy a TM .308 upper lately that wouldn't mind taking a measurment? The Troy is on sale, and I don't think my TM will arrive soon enough. I've also emailed TM, but have not heard back yet.

What I need is the thickness of the area between where the charging handle is and the upper. It's either 1/8" or 3/16"



07-01-2012, 9:46 PM
I just measured my TM-308 upper and do not find 1/8" or 3/16". I get a measurement of .1510. I can tell you though that it uses the newer "lower" rail vs. the older "higher" rail. I used the Apex handguard on mine, they measure from the centerline of the barrel.

From http://www.apexhandguard.com
"(The distance from the barrel's centerline to the top of the receiver rail after August 2009 model is 1.253")"

07-02-2012, 5:22 AM
You need the LP Troy model for the newer TM uppers.

07-02-2012, 6:16 PM