Thanks.
On the rail, it locks up tight, but the M-lok sections are not quite perfect. The magpul m-lok xtm panels clip onto the rail, but there's a tiny bit of play there. If my option were between the $110 Guntec rail (what they usually go for) or the $160 ALG Defense rail, I'd go with the ALG. But like I said, I found this one on eBay for seventy bucks.....figured I'd at least try it out.
The barrel is 10" and the muzzle device (blast/flash "projector") is 2". The muzzle device actually ends about 1mm short of the rail.
Here's a link to the muzzle device...
http://damageindustriesllc.com/produ...r-12-x-28-mk-i