Elevate your AR-15 experience with the Tiger Rock Inc. LCR Pistol Buffer Tube Locking Collar in matte black. Engineered for precise stability, this locking collar secures your Pistol Stabilizing Brace effectively. Constructed from robust T6-6061 aluminum, the collar boasts a hard anodized finish that enhances durability and wear resistance. Its seamless compatibility with buffer tubes measuring 1.125" to 1.1875" ensures a perfect fit, backed by an easy hex screw installation. T6-6061 aluminum Hard Anodized Matte Black finish Includes hex screw Fits 1.125" to 1.1875 diameter tubes Optimize your firearm setup with this essential locking collar today.