From Stainless steel or Titanium , a 6 in , large volume suppressor capable of full auto sustained fire . DB's running about 132 on 5.56 , 135 on .308 . This on 11.75 and 14 in guns , respectively . Can be had with either our new Flash Hider system or standard threading to match your rifle . Priced @ $675.00 for S/S or $775.00 for titanium .