Originally Posted by
Kuiper
Have you made a choice regarding to gassystem yet? 16" is the shortest barrellenght you can go for a midlenght. Personally I would not choose a carbine lenght gassystem for 3gun/IPSC rifle.
You have choosen the LMOS system for your weapon, I think you will benefit more from this system if the gassystem will give less of a violent pulse. I think a combination of a rifle lenght gassystem on a 18" barrel w/ LMOS system will give a very stable firing platform...
Also consider combining the LMOS BCG and buffer with a adjustable gasblock from either PRI of JP.