This is the Detent and Spring Kit used with the GBC-13 WITH detent hole.
This is also compatible with most AK/AKM/AK-74 rifles
AK Builder, GBC-13 Detent and Spring, Fits GBC-13 w/Detent Hole
- Brand: AK Builder
- Product Code: JMAC-GBC-DS
- Availability: In Stock
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$14.99 USD