AR-15 UPPER RECEIVER PARTS

The White Label 4140 gas block will provide you with a lifetime of service.

.750" Low Profile Gas Block - Set Screw

• Machined from 4140 pre-hardened steel
• H&M Black Nitride coated
• Closed end gas tube hole
• Chamfered roll pin hole for easy assembly
• Includes gas tube roll pin
• 100% USA Made