Samoon Powerful Recoil Spring For GHK M4 GBB Airsoft Rifle Length-(mm)_710 Consistent and Durable

Consistent and Durable

Soft Touch Multi-Layer Foam - Comfort at a new level

Suitable For HK417 Series Airsoft Rifle

You can also Adjust the Trigger Sensitivity and Pre-cocking

- Ventilation holes in palms and fingers improve wicking

Samoon Powerful Recoil Spring For GHK M4 GBB Airsoft Rifle Length-(mm)_710 Consistent and DurableSamoon Powerful Recoil Spring For GHK M4 GBB Airsoft Rifle Tempered high carbon steel Construction Airsoft Spring Suitable For GHK M4 GBB Rifle Airsoft Gun ** Piano wire, or music wire, is a specialized type of wire made to become springs or (as the name implies) to be used as piano strings. It is made from tempered high carbon steel, also known as spring steel, which replaced iron as the material starting in 1834. Piano wire has a very high tensile