Product description
Silverback 40 Newton mainspring for SRS & TAC-41 replicas
This spring is compatible with the "APS 13mm" standard - it has been designed for SRS replicas (except Push-Bolt mechanism) and all TAC-41s.
Outer diameter - 13 mm, inner diameter 9 mm.
| Colour | Grey |
| Product length [cm] | 25.30 |
| Product weight [g] | 20 |
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