Strike Industries Multi-Function AR-15, LR-308 Carbine End Plate with Anti-Rotation Castle Nut Steel Black

The SI Multi-Function End Plate and Anti-Rotation Castle Nut are designed to update and upgrade the often neglected castle nut and endplate system. While the traditional endplate and castle nut works extremely well in retaining your receiver extension, the peening of the castle nut is not conducive to rebuilding. With the vast amount of aftermarket support for the AR system today, SI felt that there's a need for a secure system as adaptive as you are. Enter the MFEP and ACN. The MFEP and ACN off