RA-Tech Recoil Spring for M4 Gas Blowback Series (Winter Type)
Brand: RA-Tech (RedAlert Technology)
Model: RAG-WA-STOCK-001
Product Specification:
- Suitable: WA/ WE M4 Series GBB
- Weight: 25.00g
- In Winter Gas Pressure is Lower than Summer, so it Need a Soft Recoil Spring.
| Brand: RedAlert Technology |
| Parts: For GBB Rifle |
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