
Glock OEM barrel for GEN1-4 G21 Glocks
- Glock OEM replacement barrel
- Barrel rifling has octagonal profile with right hand twist
- 4.60" - 117mm length
- Fits Glock 21 or Glock 21SF GEN1-4
- Engravings may vary
- Part number 15 on the Glock schematic