<p>This is a printable breech riser for the Crosman steel breech. </p><p>The included STL is a 5mm riser. </p><p>You can customize the riser height in the SCAD. You can also tweak the hole diameters also. <br></p><p>Keep in mind you will need a longer hammer pin for cocking, and longer screws: the rear is an 8-32, and the tiny one in the loading port is a 4-48.</p>
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