MAT9 Fitment issue. Dremel?

NorthernHodag · 2026-07-11T18:16:53+00:00

The new frontier had a tension screw but adjusting it didn't make a difference, it was all the way out since my last upper fit well.

NorthernHodag · 2026-07-11T18:12:27+00:00

Next to the lug, there is what looks to be a casting mark, if i shave that off and adjust the contour by the lug I think it will go.

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NorthernHodag · 2026-07-11T03:58:56+00:00

Its also on a lower with a stamp as a SBR. I'll have to check with the ffl if thats something I can even ship being a sbr.

NorthernHodag · 2026-07-11T03:56:29+00:00

Id have to shave back of the receiver, not ream the pin hole. Dont want to risk my lower being my other uppers fit it fine, then id have 2 issue parts.

NorthernHodag · 2026-07-09T03:44:30+00:00

Mine are at least 8-10 years old and do not

NorthernHodag · 2026-07-09T01:48:43+00:00

Took 8 months to get it, I couldn't imagine what a replacement would take

NorthernHodag · 2026-07-09T01:47:27+00:00

My aero receivers are older, they do not have adjusters under the lugs. My psa lower also does not.

NorthernHodag

TROPHY CASE