RimfireCentral.com Forums - View Single Post - Garrow Firearms Development 17hmr locked bolt gas operated AR upper
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Old 09-21-2019, 11:33 AM

Join Date: 
Mar 2014
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So i picked up one of these uppers used. I'm having an issue when you charge the upper and feels like the bolt is catching on the trigger hammer. I have just a standard mil spec trigger installed. I end up removing the upper and the bolt snaps back normally. It's definitely catching on something. Emailed Garrow about this but no response.

On a side note when I unpacked the upper from shipping and I forgot about the buffer spring and it got tossed in the trash with the box. I have a carbine buffer spring installed right now. I do have the plastic buffer. Everything is installed per the manual. Thinking this may have something to do with my issue.

Wondering if anyone has had a similar issue with the bolt.
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