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• If you have an upper in your cart which already contains a beef up kit, select "YES" that you have an upper in the dropdown above and save $59.99!

Features

• Hogue Grip
• Take Down/ Pivot Pins
• All Detents and Springs for Lower Assembly
• Safety Selector

Optional Features

Beef Up Kit

If your GEN-12 upper already includes a Beef Up Kit, select “YES” for “Upper Purchased” above to remove it from this configuration.

The Beef Up Kit includes:

• Anti-Walk Trigger Pins and Screws
• Improved Bolt Catch
• Enhanced Power Bolt Catch Spring
• Magazine Catch Assembly:
  • Improved Mil-Spec Magazine Catch Bar
  • Enhanced Power Magazine Catch Spring
  • Improved Magazine Release Button

Additional Components & Options

• Adaptive Tactical EX Performance Stock
• SB Tactical SBA3 Arm Brace
• Mil-Spec AR-15 Buffer Tube
• .308 Carbine Short Buffer (2.5", 3.8 oz.)
• .308 Carbine Spring
• QD End Plate
• Castle Nut
• Buffer Retainer
• Buffer Retainer Spring
• Mil-Spec AR Trigger

Notice

The beef-up kit must be installed in the lower to maintain function of your GEN-12 upper. If they are not installed then you may have magazines fall out, have the bolt prematurely open, or break a trigger pin during firing. Apply blue thread locker to the screws of the antiwalk pins during installation and torque to 6 in-lbs, and be sure to let cure entirely before shooting.