Jonny

Just had to report as I finally had a chance to shoot 100 rounds through my Bushmaster with DPMS 18" SASS barrel yesterday. I had to cut down the gas tube(which made me nervous) about 1/8" and it cycled perfectly. During break-in I had 9 shot groups that I kept below 1 MOA with 147 grain Federal ammo which blew me away! Perhaps Ill get better groups in the next 100 rounds and with heavier grain ammo. Thanks for all of your help and replies with regard to this matter. <thumbsup>

I had the same issue on mine, the gas tube is a bit too long. Have you had a chance to shoot yours yet? I got the gas block early and am installing mine but did have to lob off the flared part of the gas tube to make this fit.

My BM bolt has had 80 rounds through it so perhaps this helped it have some tolerances for the new barrel?? Sorry to hear that yours will not work as a new bolt is not so cheap.

Well, I have the barrel installed and had a competent gun smith check the head space for me. All is well. I'm just waiting on the proprietary taller DPMS gas block to arrive next week so that i can test fire it. Much heavier now but still very manageable.

Found my own answer to this. You do need to use the taller DPMS .936 gas block in order to clear the area of the barrel that steps up immediately after the gas block area. Luckily DPMS sells a Micro SASS block for about $21 + shipping. Great advice and I'm glad that I can send the Troy gas block back before I open it. THANK YOU ALL SO FAR!

Do you have any further explanation as to why other gas blocks wont work?Is it maybe because of the gas tube height? I ordered the .936 Troy gas block and it is on it's way this week. I hope that I can get everything to line up and function properly! I will do more research on the gas block for this barrel to see what I can find out though.

Thanks for your input! Only 80 rounds have gone through the rifle so far, so I think that ill try the original bolt but if not, I'll definitely be getting a new one. I ordered a SASS barrel today (JSE Surplus has a great price on them) so I'll have to provide update this when I have have the head space checked in case someone else has the same crazy idea. Anyone who has something else to add on this topic please feel free to chime in.

HI! I want to put a DPMS SASS fluted barrel on my new Bushmaster ORC but haven't been able to find out if anyone out there has put a DPMS SASS barrel on a Bushmaster. Especially with the Bushmaster (BM) factory bolt/bolt carrier group. I have seen another topic about BM and DPMS being very compatible with each other so I have high hopes that I don't need to purchase a new bolt or will have head spacing issues . Just wondering if anyone knows about this??