5.7

The Tempo Barrel System uses a locked-breech system that makes it so that the barrel doesn’t cam open until the bullet passes the gas port.

Sturm, Ruger & Company, Inc. (NYSE: RGR) is excited to introduce the lightweight, compact Ruger® LC Carbine™ chambered in 5.7x28mm.

Centered around the FN P90 magazine, the P50 features everything you love about KelTec.

These new guns, in tandem, have the capacity to shape the future. It has been impressive enough to make me re-evaluate the 5.7, and I hope it does you too. I have a feeling the little cartridge that could is just getting started.

When I first received the FN Five-seveN (FN 57 from here out), I immediately took notice of how lightweight it is. Coming in at only 21 ounces without the mag, it’s the kind of deceiving that pulls a remark out of anyone that picks one up for the first time. Coupling this fact with my knowledge of the FN 57 being used by military and police across the world, the latter makes a lot more sense. This is a powerful package that carries 20 rounds of 5.7×28 and puts minimal strain on the hip of the person that has to carry it.

The newest version of CMMG’s 5.7 uses a standard mil-spec AR lower receiver. Rather than shrinking dimensions and using a pistol sized magazine, CMMG engineered a larger magazine roughly the same dimensions as a standard capacity 30-round AR magazine.