POF Roller Cam Pin

[Alaska3006]

Just ordered a POF Roller Cam Kit for my MK 12

anyone use the Roller Cam?

[308sako]

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.

[Alaska3006]

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

[black22rifle]

From what I have read its a gimmick. USGI does just fine even with the wear.

[Alaska3006]

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

[Alaska3006]

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.

308sako
Can you tell a difference with the 3 hole LMT enhanced Carrier

[Clint]

Why the "go fast" firing pin?

[Alaska3006]

Decreased the drop time after pulling trigger

[vicious_cb]

Decreased the drop time after pulling trigger

Also less mass = less force striking the primer...

[GH41]

Decreased the drop time after pulling trigger

Can this decreased lock time be measured?

[Robb Jensen]

Also less mass = less force striking the primer...


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.

[Alaska3006]

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

[Alaska3006]

all good info to watch for thanks

[308sako]

308sako
Can you tell a difference with the 3 hole LMT enhanced Carrier

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.

[Alaska3006]

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.

[308sako]

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.