LJ's AR parts 16 inch 458 SOCOM barrel with the matching bolt
- 16 inch 4150V nitride barrel
- carbine gas length
- uses .875 gas block ( not included)
- 5/8x32 thread pattern muzzle brake --- must use the muzzle brake MADE FOR THE 458 A 30 CALIBER BRAKE WILL NOT WORK----
- m4 modified feed ramps made for the 458 socom ammo
- Nitride QpQ finished barrel
Comes with the matching 458 SOCOM 158C bolt
We do recommend the use of a Big Bore upper receiver due to the size of the spent casings the 458 uses.
We do offer a Billet Big Bore upper receiver made specially for this caliber.