The DT15 12.5" Barrel is designed to shoot anything you feed it without being over gassed.

All DT15's Feature:

• DT15 5.56 NATO 4150 CrMoV Hand lapped Nitrided - 1/7 twist 
• Carbine length gas port
• DT .750 gas block seat with our anti back out roll pin gas block
• DT 11.6 V2 MRS Rail
• DT15 Upper
• DT15 Birdcage

• 100% Made in the USA