SIGMA SIX TACTICAL AR-15 4″ HANDGUARD W/ UPPER

Specifications:

• Forged 7075-T6 Mil-spec receiver for a standard AR-15 rifle
• Picatinny rail, t-marks, and M4 Feed Ramps
• Black Hardcoat Anodized
• Full M-LOK Compatibility (7 sides)
• Anti-Rotation Tabs
• 6061 Aluminum Construction
• 6061 Aluminum Barrel Nut
• Slim Profile Design
• Compatible with all MIL-SPEC upper receivers
• Weight: 18.2 ounces
• Standard AR-15 dust cover door, spring, and rod. C-clip is preinstalled on the retaining rod