FN FN-15 Rifle Buffer Tube Kit

About this product

```html FN FN-15 Rifle Buffer Tube Kit Upgrade your AR-15 build with the FN FN-15 Rifle Buffer Tube Kit—engineered for reliability and precision. Designed to meet the demands of tactical shooters and home builders, this kit ensures consistent cycling and a solid lockup. We ship to all US states, fast and discreet. Key Specifications Material: Mil-spec 7075 aluminum buffer tube Finish: Type III hardcoat anodized Compatibility: Standard carbine-length buffer systems Includes: Buffer tube, castle nut, end plate Weight: 4.2 oz (tube only) Feature Breakdown The FN FN-15 buffer tube is machined from 7075 aluminum, the same grade used in military applications. Its Type III anodizing resists wear from sling mounts, stocks, and harsh environments. The internal dimensions are precision-milled to ensure smooth operation with carbine buffers and springs. This kit includes a properly staked castle nut and end plate, critical for maintaining tension under recoil. The nut’s serrations provide a firm grip for tools during installation, while the end plate’s QD swivel socket offers sling-mount versatility. Both components are heat-treated for durability. Unlike commercial-grade tubes, this mil-spec design guarantees compatibility with aftermarket stocks and receiver extensions. The tube’s threading follows SAE specifications, eliminating fitment issues with common lower receivers. Its lightweight profile balances maneuverability without sacrificing strength. Designed for builders who prioritize function over flash, the FN-15 kit skips unnecessary branding. The matte black finish blends with most builds, and the tube’s internal bore is deburred to prevent spring binding. Ideal for duty, competition, or frequent range use. Compatibility Fits most AR-15/M4 platforms with carbine-length receiver extensions. Compatible with: Mil-spec carbine buffers and springs Collapsible stocks (CAR-15, MOE, CTR, etc.) Standard lower receivers with threaded buffer ports Installation Overview Installati