Ok with me I have an 8.5 tube fed holds 3 total huge muzzle flash accuracy is very poor. 14 inch fabarm night and day for shot on target 18.5 a little tighter group not allot almost the same. I would go 12.5 unless you like a big flash and a punch in the face everytime you pull the trigger. (muzzle blast hits you in the face and it hurts you get a headache from it)





















































