Just ordered a POF Roller Cam Kit for my MK 12
anyone use the Roller Cam?
Got one from Rainier’s, didn’t fit a gas keyed carrier, it’s for piston guns, or one you want to modify the gas key on… Then I got the LMT enhanced carrier with the different cam pin slot. Fits that, but didn’t rotate particularly well. My thought is to break in the LMT carrier and try again.
I ordered the kit with the modified Gas key
Just guessing maybe polish your carrier cam insert area a tad…will smooth it up for rotation
From what I have read its a gimmick. USGI does just fine even with the wear.
I kinda thinking that way also
I am going to give it a shot…I have a extra bolt and carrier group I am screwing with…
So far…
Sharps Relible Bolt
5 coil Extractor with Black inset
Titamiun firing Pin
McFarland 1 pcs gas ring
And just ordered the roller Cam pin with modified gas key
308sako
Can you tell a difference with the 3 hole LMT enhanced Carrier
Why the “go fast” firing pin?
Decreased the drop time after pulling trigger
Also less mass = less force striking the primer…
Can this decreased lock time be measured?
I’ve also seen them wear at the FP nose and create a burr which then pierces primers, ruins bolts (from primer flow) and often makes the rifle slam fire…
Faster lock time is best accomplished with a faster trigger like a Geissele DMR hi-speed.
I am using a SSA E trigger from Geissele
But I will monitor the Firing Pin for wear, so far so good…I still have my Colt Firing Pin as back up
all good info to watch for thanks
I have not yet had the opportunity to shoot it enough to give even an opinionated answer. In other words I can’t see a difference yet.
It suppose lower port pressure …that might be my next purchase.
Because the pin was too tight the bolt/carrier weren’t cycling properly and therefore couldn’t make a judgement on function. Maybe Friday.