I think my Gen1 was serial 1262 or something. Your Gen 1 chassis can use a Gen 2 Barrel extension, though you have to spend a few more seconds lining up the barrel before you close the bolt. So if you buy a new barrel today it will work in your gun.
ETA: Look into the Hoptic Saddle blanket for your chassis. Makes a world of difference.
ETA: Look into the Hoptic Saddle blanket for your chassis. Makes a world of difference.
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