The Para Bellum M16 Sand Cutter Bolt is designed to deliver unmatched performance in the harshest environments. Our secret sauce.... PRECISION GROUND! Precision grinding is done on all outside dimensions and all 3 interior dimensions, giving our BCGs a near-frictionless surface finish. To ensure long-term reliability and corrosion resistance, each BCG is coated with industry-leading finisher, H&M Black Nitride+ TM finish which delivers the most durability and improved lubricity for our BEST IN CLASS BCG that is 100% American Made. 
 
Precision-machined rail serrations are scientifically designed to cut through and remove debris to maintain the functionality of your firearm in extreme conditions.
 
M16 Style CarrierMachined from 8620 Steel
Heat Treated
Final Grind Before Plating
Blacknitride+™ by H&M
Angle Rail Cuts to Reduce Debris Such as Sand and Dirt
5.56/.223 BoltMachined from 9310 Steel
Heat Treated
Shot Peened
MPI Tested (Magnetic Particle Inspection)
Blacknitride+™ by H&M
Billet Gas KeyMachined from Solid Billet of 4130 Steel
Properly Seated with Grade 8 Fasteners
Properly Staked
Blacknitride+™ by H&M
Cam PinMachined from 4140 Steel
Heat Treated
Blacknitride+™ by H&M
Billet ExtractorMachined from Solid Billet of 4140 Steel
Heat Treated
Shot Peened
Phosphate Coated
Extractor Insert Included
Viton O-Ring Included
Firing Pin Machined from 8640 Steel
Blacknitride+™ by H&M
100% American Made