Grid Defense AR-10/.308 Mil-Spec Carbine Buffer Tube Kit

• Made in the USA
• Compatible with M4 Type Butt Stocks
• 6 Position Carbine Buffer Tube
• Machined from 7075-T6 Aluminum
• End Plate
• Castle Nut
• .308 Carbine Buffer Spring
• .308 Carbine Buffer (3.8oz)
• Hard Coat Black Anodized Finish