Donny FL FatBoy 2.0 Moderator w/Muzzle Brake & 3″ Extension for the S510

2″ x 8.5″… 1/2″ x 20 UNF Threads

Is the 4.25 inch FatBoy still too loud for you? This 3 inch expansion chamber added to the rear of the FatBoy will make it even quieter… increases the air volume that gets captured inside the moderator! The muzzle brake or air stripper screws onto the front of the fat boy. Note: The muzzle brake does not come with the individual air strippers. You can change the caliber size by using the inserts that are included with the fat boy!

Shipped by USPS Ground Only!