#Ar57
Sneak peek of suppressed full auto AR57
I blogged about the new AR57 earlier this year. The AR Five Seven is a one piece 5.7×28mm upper that attaches to a AR-15 lower and uses the 50 round FN P90 magazines. 57 Center posted a few photos of their new SBR suppressed submachine gun/PDW:
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.