Multiple inserts are available to make your Wolverine one of the most versatile silencers you own. The smaller threads will use the M14 Collar, both M24 thread inserts will use the M24 collar, and the M26 thread will use the M26 collar.
Note: The M26 insert does include the M26 collar, which is why that variation is a different price.
Note: Bulgarian Krinkov/SBRs take the 24mm LONG Insert
