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c308

RogueOneDeathTrooperswithDLT-19s - Edited
Rifles

Performance Modifications For PTR91, C308, HK91 and CETME Rifles

January 2, 2017 by David Donchess Leave a Comment

The roller delayed blowback design in general is becoming more and more popular as time goes on, with the recent releases of several G3 and CETME style platforms that can be had for under $1000. The parts for modifications and magazines are often inexpensive and readily available in places that sell surplus gear. Magazines can often be found for about $5 a pop, and furniture … [Read more...]

ptr91
Rifles

PTR91, HK 91, G3 Malfunction Sources

December 15, 2016 by David Donchess Leave a Comment

If you own a roller-delayed blowback rifle like the PTR91, or ever had the pleasure of using one, you will probably note right away that it is one of the softest recoiling 308 rifles you will ever fire. These rifles are known for their top notch reliability and tough and robust nature regardless of your neglect. That being said, these rifles are not devoid of issues. It is … [Read more...]

roller delayed blowback
Rifles

How It Works: H&K’s Roller-Delayed Blowback Operating System

August 1, 2016 by David Donchess Leave a Comment

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 gas system to cycle the heavy .308 … [Read more...]

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