This item is stainless steel piston of booster assembly

Compatibility: universal 1-3/16x24 male

Material: Heat Treated Steel Construction piston+ aluminum

Thread Pitch for choose

Weight 3.8oz

Booster assembly : Heat Treated Steel Construction piston+ aluminum

Size.1/2 x 28 9mm Caliber available

(5/8x24, .578×28 .45 Caliber, 13.5 x 1 LH , 16×1 LH, 9/16X24, Custom Thread)

Package Included:

1 x booster (solvent trap is not inculded)

1 x reduction threaded ring with external 1.375x24 to internal thread 1-3/16x24

2.Those are made of inferior metal materials from nonprofessional manufacturers, and the threads are all nonmetric, you cannot use the accessories on the market such as boosters and trilugs

Brand new and High quality
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