Is it common for the bolt head to move much more freely than in a standard AR15 BCG?

Sat Apr 28, 2018 1:19 pm

Just got a Wolf A1 upper and noticed that the bolt head moves on the cam track with a lot less force than my DI rifles. Is this normal for the t91 BCG, is it because there are no gas rings?

e292644 · Sat Apr 28, 2018 1:24 pm

You are correct, there's no gas rings, the bolt head movement does not restrict by them.

haacker45 wrote: ↑Sat Apr 28, 2018 1:19 pm Just got a Wolf A1 upper and noticed that the bolt head moves on the cam track with a lot less force than my DI rifles. Is this normal for the t91 BCG, is it because there are no gas rings?

Sat Apr 28, 2018 1:32 pm

Ok, thanks follow up question, mine is a 14.5 inch upper and it has m4 feed ramps, do you know if that is a new addition. I recall hearing that these uppers don't have M4 feed ramps, but that was back when only the 16" uppers were available.

e292644 · Sat Apr 28, 2018 1:37 pm

Original T91 does not have M4 feed ramps. Not sure why & when Wolf start adding them into their upper.
Do you mind share some photos of your 14.5" upper?
Thanks,

haacker45 wrote: ↑Sat Apr 28, 2018 1:32 pm Ok, thanks follow up question, mine is a 14.5 inch upper and it has m4 feed ramps, do you know if that is a new addition. I recall hearing that these uppers don't have M4 feed ramps, but that was back when only the 16" uppers were available.

Sat Apr 28, 2018 1:54 pm

Oops just my bad eyes I guess, looked again and it is just standard rifle feed ramps.

e292644 wrote: ↑Sat Apr 28, 2018 1:37 pm Original T91 does not have M4 feed ramps. Not sure why & when Wolf start adding them into their upper.
Do you mind share some photos of your 14.5" upper?
Thanks,

haacker45 wrote: ↑Sat Apr 28, 2018 1:32 pm Ok, thanks follow up question, mine is a 14.5 inch upper and it has m4 feed ramps, do you know if that is a new addition. I recall hearing that these uppers don't have M4 feed ramps, but that was back when only the 16" uppers were available.

e292644 · Sat Apr 28, 2018 2:56 pm

Ok, no worry.

haacker45 wrote: ↑Sat Apr 28, 2018 1:54 pm Oops just my bad eyes I guess, looked again and it is just standard rifle feed ramps.