
Glock OEM barrel for GEN1-4 G20/40 Glocks
- Glock OEM replacement barrel
- Barrel rifling has hexagonal profile with right hand twist
- 6.02" - 153mm length
- Standard length on Glock 40 GEN4
- Extended length on Glock 21/21SF GEN1-4
- Engravings may vary
- Part number 15 on the Glock schematic