• M16 Style Carrier -
• Machined from 8620 Steel
• Heat Treated
• Final Grind Before Plating
• Blacknitride+™ by H&M

- 5.56/.223 Bolt -

• Machined from 9310 Steel
• Heat Treated
• Shot Peened
• MPI Tested (Magnetic Particle Inspection)
• Blacknitride+™ by H&M

- Billet Gas Key -

• Machined from Solid Billet of 4140 Steel
• Properly Seated with Grade 8 Fasteners
• Properly Staked
• Blacknitride+™ by H&M
• Rock-Op's Exclusive Stack-Six Staking!

- Cam Pin -

• Machined from 4140 Steel
• Heat Treated
• Blacknitride+™ by H&M

- Billet Extractor -

• Machined 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