Вообще-то говорилось о пилении ствола карабина, а не гранатомета
Писано известным фотографом-гирдосом SMGLee в одной из оружейных тем MilitaryPhotos.net (линк выложу ):
Few week ago, I saw an interesting item at a very interesting place...
Colt M4 14.5inch upper cut to 12.5inches
KAC mid length URX with low profile gas block under the rail
URX has front BUIS build in
AAC M4-2000 suppressor with the blackout flash hider, won a dev group contract recently against the SF cans
EOTech 553, SOPMOD2 package
KAC 600m BUIS, used since it was left over from some SPR they had....
Surefire Scout light with thumb switch...with the new 110 lumens head
Tangodown VFG
Insight PEQ15 with pressure switch wired to Tangodown's rail panel, SOPMOD2 package
mate to the regualr old standard Colt M4 lower, basically Mk18 lower
LMT SOPMOD stock
shootuing the new 70gr ammo loaded for SOCOM by Black Hill, bullet by Barnes TSX
with the barrel at 12.5, it is still short enough to do the CQB-R work and still be able to take advantage of the new ammo and make kills out to 300m...and in a pinch, take a M203 since the cut on the barrel is still available.