Dirty Bird 5/8x24 x 3/4 OD x 5/8 Long Fluted Thread Protector for 7.62x39, 300 BLK, 6.8 SPC, 6.5 Grendel - Black
Made in the USA
CNC Machined Steel
|Finish||Manganese Phosphate (Parkerized)|
5.8x24 is a typical thread pattern for most 7.62x39, 300BLK, 6.8 SPC and 6.5 Grendel barrels but some barrel manufacturers could be different.