Troy Alpha Rail Install and Review

**SteadyUp** · 05-01-12, 17:58

Originally Posted by g-men10455

How come so state M4 Feedramps & others don't?

Can you please clarify what you mean?

M4 feed ramps are machined into the upper receiver, not the lower.

**g-men10455** · 05-01-12, 18:11

I was looking at the upper receivers at BCM & some like this one say m4 Feedramps.

http://www.bravocompanyusa.com/mobile/default.aspx#P953

and others don't.

**mkmckinley** · 05-01-12, 20:21

Well, some uppers are made with them and some aren't. I suggest you look in the stickies and do a search.

**Animal_Mother556** · 06-15-12, 11:35

I am on the war path for a BCM Midlength. I would like to just cut the FSB and instal my own Troy Alpha. Has anyone had trouble with "at home" installations like alignment with the upper? I don't have a carry-handle to use to hold the pieces together, but I do have a RRA style "riser" that should be long enough to do it.

**GTifosi** · 06-15-12, 14:24

I'd hazard that a greater percentage are installed 'at home' than by shops with the exception being perhaps models that come from the factory with X accutriment, gzimo or doodad as part of the package.

**Nightvisionary** · 06-15-12, 15:25

Originally Posted by ericridebike

Thanks for the review. Looking at the Alpha vs the Ranier/Samson Evolution or the MI Gen 2 rail. I like some of the features of the others, but the Alpha looks a lot sturdier/refined(from pics anyway) Haven't gotten to handle the MI or Samson/Ranier, but did get to briefly fondle a Troy & it seemed top notch.

After reading the OP's review I think the Samson Evolution or Rainier's version is slightly better executed. For the same weight as the Troy the Samson has two anti-rotation tabs and a heat sink/mounting bracket that keeps the hand guard cooler.

I went with the Samson evolution after reading several reports here and elsewhere of Troy Alpha rails coming loose and slipping off the barrel nut.

**MFWIC2** · 06-15-12, 16:39

I installed a Troy Alpha rail on my 20" BCM.
Cut down the FSP and contured it with a dremel and blued it.
Then reinstalled the modified FSP with new tapered pins.
Used loctite on the threads. I have had no problems.
Just giving my input

**VIP3R 237** · 06-15-12, 16:50

Im suprised you didnt strip the teeth of your barrel nut first... thats nasty.

Originally Posted by TacticalTyler

Its nice to see the alpha rail is actually flush with the upper reciever.
I had a TRX extreme battle rail, an it wasnt flush at all. That was one of their problems and why they switched to the alpha style. I cant stand that slight uneven drop the battle rail had. It had to go. Glad they came out with the new versions.

Same problem here, but Troy's CS is amazing and they sent me a new alpha rail free of charge and paid the s&h both ways. I love the alpha rail, its a smart and efficient design.

**sgtjosh** · 06-15-12, 17:07

Originally Posted by SSGGlock

For those that have installed this rail. I just got a 13" and installed. I cut and grind down the standard front sight. With everything together there is only about 1mm between it and the rail. Did everyone else use a cut down front sight or buy a low profile? If so which one?
Thanks

This morning I cut down my FSB with an angle grinder. This afternoon my rail arrived. I can't wait until this build is complete.