178 SCOPE Comms? US Navy posts photo of sailor firing a rifle with the scope on backwards. US Marines follows up with a photo of a Marine firing a rifle with the scope correctly mounted. (media.greatawakening.win) 🐸 WAG THE FROG 🐸 posted 266 days ago by Qanaut 266 days ago by Qanaut +180 / -2 65 comments download share 65 comments share download save hide report block hide replies
M4 is chambered for a 5.56mm NATO. can run .223REM (lower chamber pressure)