Question about my xsr upper

dan158

New member
Upper has a gas adjustment screw in the back of receiver? How would this work as compared to adjustable gas block? Or is that a typo error of that upper and just a bolt to keep the BCG from falling out? Thanks. Dan
 
Yes,Thats like the one I ordered. I ordered from another vendor and in the print it reads "Upper has a gas adjustment screw in the back of receiver" When I looked at mine again,I could not figure out how. Also as I was waiting for my other parts to arrive I bought an mmr hunter. I took the upper off it and tried to place the stripped xsr upper on the lower. It wont pin up. I can get one of the 2 pins pushed through but not both. Hope wont be issue when I get my lower or its just a minor tweek. But thank you for input. Dan
 
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