LJ's Parts AR15 458 SOCOM 16 inch barrel- MATCH GRADE 416R stainless steel
- 16 inch
- 416R stainless steel
- carbine gas length
- uses .875
- 5/8 x 24 threaded
- m4 modified feed ramps made for the 458 socom ammo
- weights only 1 lb 15 oz.
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.