The Army will continue to perform the MK19 grenade machine gun semi-annual bolt and backplate detailed technical inspection (DTI). Read on for the full story…...

There’s a discrepancy between the TM 9-1010-232-10 and -23&P. The M320 grenade launcher forward and rear mounting adaptor screws aren’t listed in the -10 TM. Keep reading to get the NSNs…...

Dear Editor, when Soldiers disassemble the MK 19 grenade machine gun, they should make sure after removing the sear plate assembly from the receiver that their priority is putting the sear safety lock on. Read on to discover...

This article initially appeared in PS 760 (Mar 16), p. 42. The M320 grenade launcher has a very short barrel. If your fingers stick out instead of fully wrapping around the grip, they’re much more likely to be injured. Be...

Dear Editor, during several MK 19 grenade machine gun services, we’ve noticed what could be considered incorrect wire lacing on the bolt. Nuts are laced together to reduce any and all movement or as much movement as possible...

Dear Editor, It looks like there’s still a problem with how Soldiers are storing the M320 grenade launcher (GL) muzzle cap. As a result, the cap ends up getting misplaced, lost or shot off the GL...

Operators, you’ll find the preventive maintenance checks for the M320 grenade launcher on Page 0019-2 of TM 9-1010-232-10 (Nov 08, w/Ch 1, Apr 12). The BEFORE PMCS’s Equipment Not Ready/Available If section for Item 1 tells...

Dear Editor, some units with MK19 grenade machine guns (Mods 3 and 4) have incorrect serial numbers listed on the property book. That's because the weapon is etched/engraved with both a serial number and the month/year of...

Dear Editor, here at Ft Leonard Wood, we’re seeing too many cracked or broken M320A1 grenade launcher sight supports. The only fix is to order the entire leaf sight assembly kit, NSN 1005-01-564-2663, for $55. And sometimes...