Going to be a good Saturday going all out MK12

[lord of war619]

Sold my MK12 a few months ago because I wanted a Geissele URGI 10.3, well I finished that up(almost waiting on light mount) and there was a empty hole left so Time for another MK12 Mod 1, I went a little overboard but I wanted it nice
Hand pick Colt keyhole upper perfectly centered
Colt M4A1 US prop marked lower, KAC 2 stage installed KAC trigger guard and Gen 1 Sopmod
HCS MK12 barrel
Badger mk12 gas block
New Colt bcg
PRI gas buster
KAC mk12 RAS
KAC broom handle not shown
KAC mk12 front and rear sights coming
Original OPCs inc brake and collar sent off to be refinished
AE suppressor still in jail
Leupold Limited release MK12 mod 1 scope
Coffee mug is full time to get started

 

[lord of war619]

few more, snagged the last barrel Kevin had at HCS

 

[lord of war619]

Can anyone recomend a ring lapping kit, one of the downfall of this system is the rings in my opinion

 

[lord of war619]

Everything went perfect, checked the headspace, the barrel seated perfectly, timed and properly torqued the barrel nut to specs with a torque wrench, used my PRI gas block tool and properly pinned the gas tube, and then these ugly way too long gas block sets screws came out of the Badger mk12 gas block, I dont mind the melonited mk12 gas block, but the bright stainless set screws yuck, one sets a little lower on the dimple still not flush they just dont look right, have to find replacement set screws

 

[DRAM40A1]

I had the same issue with an Aero gas blocks few days ago. I used a dremel with a cut off disc and trimmed them down flush with the block.

 

[oldfatguy]

Pretty easy to find shorter black set screws in the hardware department of Lowe’s or Home Depot. You could trim the stainless ones as long as the socket doesn’t become too shallow.

OFG

 

[lord of war619]

Pretty easy to find shorter black set screws in the hardware department of Lowe’s or Home Depot. You could trim the stainless ones as long as the socket doesn’t become too shallow.

OFG

Thanks thats probably what I will do, I put some off a low pro gas block I had laying around, now its 2 holes they are half the size of the ones it came with, you would think if its marketed as a milspec MK12 gas block they would size it correctly to the barrel, considering Im paying $65 for a standard non adjustable gas block