This product works with all COLT series such as Marui Colt, Meu, Night Warrior, etc.
Prevents the recoil spring from twisting and bouncing, and supports the stable operation.
Uses engineering plastic buffering for a strong reaction
Comes with a spring guide plug
 
• EAN & SKU:  8809899600252, SKU: SG21-MC
• Product Dimension & Weight: 3.97(L)x0.45(W)x0.45(H) inch 1.7 oz 
• Package Weight & Dimension:  4.5(L)x 1.5(W) x 1.6(H) inch 1.8 oz 
• Made in Korea