04-20-2012, 08:51 AM
stanc Wrote:??? The receivers are typical aircraft grade, aluminium alloy.Ditch the piston and make it a Grendel.
[video=youtube;bY8njXxcUEU]http://www.youtube.com/watch?v=bY8njXxcUEU[/video]
http://www.youtube.com/watch?v=bY8njXxcUEU
I'd want one of them really bad! I can't afford to be the first up guinea pig these days, but if it turned out that their new lower and mag feeds grendel ammo... I might dump something to fund a build.

