If you want to get rid of the plastic front sight and add a muzzle brake or suppressor to your Kel Tec rifle then this is your solution!You send us barrel and we will cut off the front sight, thread it in 1/2x28 to fit any AR-15 type muzzle brake, compensator or suppressor. We will also create a knurled, threaded spacer FINISHED in BLACK OXIDE (only for 1/2x28) to cover the long, existing threads behind the front threaded section for your compensator or suppressor. Keeping the barrel length will maintain its' compliance. You pay return shipping of $20. + or - depending on weight, insurance and destination. If you send us the entire gun for this service, we charge an additional $45. to remove the barrel and install after threading and the return shipping will be higher as well. Please call for specifics.