SI Takedown Pins for AR15 HK416 M4 Receivers Type:red - One size fits all

- One size fits all

- It has Semi-auto shooting and blowback between each shots

ensuring exceptional toughness and long-lasting performance

🎁 8x Short Pistol Darts

Package includes: 1x fam magwell grip

SI Takedown Pins for AR15 HK416 M4 Receivers Type:red - One size fits allUpgrade your build with precision machined SI Takedown Pins, engineered for a secure and rattle free fit on AR15, HK416, and M4 platform receivers. Designed for drop in installation with no gunsmithing required, these pins deliver consistent performance and a clean, professional finish. A must have upgrade for any serious builder or enthusiast. Specificatinos: Material: cnc alloy metal. Color: black; tan; blue; red. Size: 3. 4*1. 3cm & 2. 8*0. 9cm.