Crosman 1377 soundmoderator (silencer)

thingiverse

Revamp Crosman 1377 (Part 1: "Crosman 1377 Picatinny rail" - http://www.thingiverse.com/thing:250950): - Add a backstop sound moderator (SM) - Incorporate a drum (outer diameter: 24mm, inner diameter: 22mm) - Install a guide for the rifled barrel - Replace the front stopper with 1377/bracket SM (Crosman replacement part 1377-2289) - Mount a front tube SM - Test an inner SM part (cannot print, sample only) Use a "Carbon" drum for the drum. Modify Crosman 1377 (Part 1: "Crosman 1377 Picatinny rail") with these changes: 1 - Install a backstop sound moderator (SM part 1377-2289) 2 - Use a drum (outer diameter: 24mm, inner diameter: 22mm) filled with "Carbon" 3 - Add a guide for the rifled barrel 4 - Replace the front stopper with SM bracket 1377 (part 1377-2289 may not fit perfectly, drill hole 5 for axis alignment) 5 - Mount a front tube SM 6 - Test inner SM part (discouraged due to issues in printing and installation) Note: Drill hole 5 for proper axis alignment of N4 (1377-2289); use ramrod to secure bullets in SM, avoid first shot misfires by swinging the gun 1-2 times; do not use inner SM part N6 as it may cause issues.