Underwood's 9mm Luger +P+ load pairs solid copper Xtreme Penetrator bullets with +P+ power for deep, reliable penetration and consistent feeding.
Underwood Ammunition has partnered with Lehigh Defense to create a formidable defensive round that combines raw power with precision engineering.
This is serious ammunition for those who demand deep, predictable penetration. The solid copper construction means no fragmentation—just straight-line penetration through intermediate barriers. The unique nose design ensures that every round chambers and feeds without hesitation, a critical factor when reliability matters most.