3 ms·
It's an AR-15 variant just like the HK-416 it's based on. Yes, it has a piston, but technically the DI system has a piston too -- it's just configured differen
by jki275 8y ago
It's an AR-15 variant just like the HK-416 it's based on. Yes, it has a piston, but technically the DI system has a piston too -- it's just configured differently.