Item Relisted! FS/FT SHTF .50 BMG

[dtass1970]

Who made the lower? Does the SHTF upper work with the AR15 lower fire control group? So you could customize with your choice of drop in triggers, for example?

Binary, lol!

 

[Rambler]

The upper works on a standard AR15 lower. You must use a very heavy hammer spring to ensure reliable ignition with the 50 BMG round.

 

[C Drill97]

The upper comes with a heavier hammer spring and Hammer