Krousis Defense/FMA RCB (Caiman) Helmet (BK / DE / FG) Batteries and Chargers The 13 mm springs are

The 13 mm springs are made from silicone chrome steel which allows easy compression and fast return

Aluminum Alloy

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Hopup: VFC slide style chamber w/ 50’ bucking

Krousis Defense/FMA RCB (Caiman) Helmet (BK / DE / FG) Batteries and Chargers The 13 mm springs areMaterials: ABS engineering plastics have good impact resistance, heat resistance and low temperature resistance. Weight: 860 g Size: adjustable for players within 61cm [M L 53 57cm] [L XL 57 61cm] Helmet sponge configuration: the MT helmet is specially equipped with high and slow rebound sponge +TPU+ double sided flannelet + high elastic EVA, 70KG slow rebound sponge, effectively protecting the head; High density sponge can relieve the head, improve