Those upgrade parts are fit for the m1 bread machine foam blaster toy gun.

Improve the durability and firepower of the blaster.

Type1 : 11.1kg spring.

Type 2: 167mm bronze barrel.

Type 3: bronze cylinder.

Type 4: 3d print charging handle with rail.

Type 5: 3d print AR buffer tube adapter.

Type 5: 3d print nerf buffer tube adapter.

Type 6: pistol grip integrated with stock.

Type 7: front head.

Package includes: 1x m4 bread machine blaster upgrade mod.