POF-USA offers replacement Lower Receiver Components for annual maintenance. From roll pins to springs, grips to triggers, we have everything you need for you next rifle build. Ensure your rifle is fitted with the highest quality parts.

POF-USA’s patented E2 dual-extraction technology consists of four small channels cut into the walls of the chamber allowing a small amount of gas pressure to push against the neck of the spent case.

2008年12月30日 · If you buy into all the POF love around the hide (and their own marketing literature) the gen 3 was a reliable and accurate firearm. In that case, what does the gen 4 add? It was a reliable gun before, why does it need the E^2 chamber?

2019年6月18日 · The Revolution’s chamber features POF-USA’s E² dual-extraction system to improve reliability. This consists of four small channels cut into the walls of the chamber. When a cartridge is fired, they allow a small amount of gas pressure to flow backwards and push on the shoulder of the spent casing.

2008年3月10日 · Firearm Discussion and Resources from AR-15, AK-47, Handguns and more! Buy, Sell, and Trade your Firearms and Gear.

The Ambi Selector Switch from POF-USA is an instant upgrade. As a result, it easily installs in any of your favorite Mil-Spec AR-15. This Safety was designed to maximize ergonomics and efficiency right out of the box.

2011年12月8日 · 回顾一下，前面的PGO优化，分为三步：使用prof-gen选项，得到一个辅助可执行程序；运行辅助可执行程序，会输出多个dyn文件；使用prof-use选项，会将dyn文件合并为dpi文件，然后利用dpi文件进行编译优化。

MANUFACTURER: POF USA; FAMILY: P-415 EDGE Series; MODEL: P-415 EDGE; TYPE: Rifle; ACTION: Semi-Auto; CALIBER/GAUGE: 5.56 x 45mm; FINISH: Black Anodized; FINISH TYPE: Black; STOCK: Collapsible / Folding Stock; STOCK/GRIPS: Mission First Tactical Stock

Profile-Guided Optimization consists of three phases (or steps): Generating instrumented code and linking with the -prof-gen (Linux* and Mac OS* X) or /Qprof-gen (Windows*) option. Running the instrumented executable, which produces dynamic-information (.dyn) files.

All while delivering a rifle at a price point affordable to serious shooters. The result is a sub 6 pound .308 rifle packed with proprietary and patented innovations. Thanks to its ridiculously light weight, never before has a semi auto .308 been a more realistic option to carry in the field, no matter how far the journey.