RyuSekai

I don't think you understand. It was tuned to lock back with tula because it is under powered, Therefore, if it locks back with tula, it will with any other ammo. "It has been tuned to lock back with tula ammo, however I usually shoot higher pressure rounds." Reading is key.

Not sure if it was mentioned but a lot of people use the Browning Gold Piston to shoot light loads.

How reliable are Low Mass BCGs Trying to build a very soft shooting AR 15 by using low mass parts, I don't want to sacrifice reliability though. I am currently using a SYRAC adjustable gas block, M16 BCG, and CAR buffer. It has been tuned to lock back with tula ammo, however I usually shoot higher pressure rounds. This set up has been 100% after a couple of carbine classes. If I switch to a JP LO MOS BCG and tune the gas to lock back with tula again will there be any reliability issues? Any issues with the bolt not staying locked long enough because of the lighter weight behind it.?

I use the Syrac under my NSR. Its the most reliable one out of the ones you listed.

Do they use it to shoot pellets or for slugs?

Can't say that I have. I even see the FN shoot team use sent rib on the FN SLP mk1s

Hi, I'm thinking of picking up an FN SLP MK1, I was wondering if the sighting system was slower than a vent ribbed sight. What do you guys think?

Do you guys that own SLPs feel the sighting system is slower than a vent ribbed sight?