Tag: 5.7×28

Four PDW calibers: .22 WMR (Kel-Tec CMR-30 and PMR-30 SMG), .22 SCAMP (Colt SCAMP), 5.7x28mm FN (FN P90), and 4.6x30mm HK (HK MP7).

Modern Personal Defense Weapon Calibers 001: Introduction, and the 5.7x28mm FN

At this point, we’ve talked about 25 different intermediate and full power calibers as part of a series comparing different types of modern small arms ammunition. However, one subject not yet thoroughly covered is rounds for personal defense weapons (PDWs). These [Read More…]

The FN Five-seveN Pistol (5.7x28mm)


The FN Five-seveN pistol is chambered for the same 5.7x28mm cartridge as the famous P90 PDW, but the short barrel of the pistol results in less velocity. Still, the Five-seveN is perhaps the perfect sidearm for a man using the P90 as a primary. It also makes for a great range gun as the low [Read More…]

PDWs2 2 1

5.7x28mm Versus Body Armor

Every time the 5.7x28mm cartridge comes up in a discussion, you always hear someone talk about its ability to penetrate a row of Abrams tanks and then continue on into the next county, but there is not a lot of information out there to prove the manufacturer’s [Read More…]

albums-c108-01coltcolt-ar-57008-tm.jpg

AR Five Seven: 5.7x28mm AR Upper

This is very interesting. A one piece 5.7x28mm modular upper that attaches to a AR-15 lower receiver and uses 50 round FN P90 magazines. TrueWPN at AR-15.com took these photos. Click to expand. Well this thing is interesting. Its a AR-15- PS90 cross bread. The one piece [Read More…]