Hk 416 to M16FOW DI gas Short Barrel (11.5) Pictorial overview
Both weapons fired for over 1100 rounds (800 AA40 Frangible, and 300 rds M855) ea. No cleaning performed other than adding lube to the 11.5 DI gun three times. I am not trying to lead a horse to water in this – just to offer up the observations on this issue. The 10.3 was not fired in this aspect.
Weapons where shot semi-auto during a variety of drills, however no excessively rapid rates of fire where used, however the Hk416 was shot at a more rapid rate. Two ammo related stoppages occurred with the 11.5 DI gun (one poor crimped round got stuck in the barrel, and one head of a round was managed on feeding – both with the AA40 Frangible Blackhills load), one stoppage was noted in the Hk416 with M855 - failure to feed, USGI mag)
Weapons where stripped, and as to be expected the DI weapon immediately showed visible carbon build up
DI Bolt
Hk416 Bolt
Receiver bodies
DI
Hk416
Hk416 gas system take out
Quick wipe of chamber Hk416
Quick wipe of 11.5
Clean and lube requirements
One issue to be noted – due to the round getting stuck and the bullet sticking in the chamber of the 11.5 gun, there was an abundance of ball powder accumulated – however it was absorbed into the carbon slurry and impossible to remove without a full cleaning so it was left in.
Cleaning the Hk416 took aprox 7 min – inc removing the handguard and replacing it. Cleaning the 11.5 DI gun took aprox 15 min – inc relubrication.
I am not going to comment on this beyond what I have posted initially, I will get back to this in due time
Both weapons fired for over 1100 rounds (800 AA40 Frangible, and 300 rds M855) ea. No cleaning performed other than adding lube to the 11.5 DI gun three times. I am not trying to lead a horse to water in this – just to offer up the observations on this issue. The 10.3 was not fired in this aspect.
Weapons where shot semi-auto during a variety of drills, however no excessively rapid rates of fire where used, however the Hk416 was shot at a more rapid rate. Two ammo related stoppages occurred with the 11.5 DI gun (one poor crimped round got stuck in the barrel, and one head of a round was managed on feeding – both with the AA40 Frangible Blackhills load), one stoppage was noted in the Hk416 with M855 - failure to feed, USGI mag)
Weapons where stripped, and as to be expected the DI weapon immediately showed visible carbon build up
DI Bolt
Hk416 Bolt
Receiver bodies
DI
Hk416
Hk416 gas system take out
Quick wipe of chamber Hk416
Quick wipe of 11.5
Clean and lube requirements
One issue to be noted – due to the round getting stuck and the bullet sticking in the chamber of the 11.5 gun, there was an abundance of ball powder accumulated – however it was absorbed into the carbon slurry and impossible to remove without a full cleaning so it was left in.
Cleaning the Hk416 took aprox 7 min – inc removing the handguard and replacing it. Cleaning the 11.5 DI gun took aprox 15 min – inc relubrication.
I am not going to comment on this beyond what I have posted initially, I will get back to this in due time
Last edited:
