The PTR91 GI Model is a true Battle Rifle in every bit of the definition. It is durable, it has little recoil, it has great accuracy at range, and it is even modular. PTR really makes a winner with this model. This rifle has a long history before PTR got their hands on the blueprints and started […]
hk91
How It Works: H&K’s Roller-Delayed Blowback Operating System
The roller-delayed blowback system can be confusing at times to understand, but I hope this video is educational in understanding how G3/MP5 type actions work. The term “roller-locked” is an incorrect description due to how this system is designed. Unlike the FAL and other popular .308 rifles of yesteryear, the G3/PTR91/C308 do not use a […]