
Availability: In Stock
Current Stock: Out of stock
Building or repairing an AR-15 carbine means starting with a solid foundation—and that begins with a reliable buffer tube assembly. The KAK Industry AR-15 carbine buffer tube kit gives you everything needed to complete the rear end of your receiver in one box. Whether you're assembling a new rifle, upgrading an existing build, or replacing worn components, this mil-spec kit includes the tube, buffer, spring, castle nut, and end plate, so you're not hunting down parts separately.
Built from 7075 aluminum with a hard-coat anodized finish, this buffer tube is engineered to handle the wear and pressure cycling of semi-auto fire while resisting corrosion. The 3-ounce carbine buffer pairs with a chrome silicon spring to manage recoil consistently, and the six-position design lets you dial in the length of pull for your body and your mission. Whether you're running a lightweight upper or a heavy barrel setup, adjustability matters when you're fine-tuning the feel of your rifle.
KAK's mil-spec design means it plays nice with standard AR-15 components—your existing buttstock and buffer will mate up without modification. The hard-anodized finish isn't just cosmetic; it's protection against the wear that comes from regular use and cleaning. If you're the type to tinker and improve your rifle piece by piece, or you need a straightforward, complete buffer tube assembly for a new build, this kit cuts out the guesswork.
| Brand | KAK Industry |
| Product Type | AR-15 Carbine Buffer Tube Kit |
| Buffer Weight | 3 oz |
| Tube Material | 7075 Aluminum |
| Finish | Military Hard-Coat Anodized, Black |
| Positions | 6 |
| Spec | Mil-Spec |
| Kit Contents | Buffer Tube, Carbine Buffer, Spring (Chrome Silicon), Castle Nut, End Plate |
Yes. This is a mil-spec carbine buffer tube, so it's compatible with standard AR-15 stocks and buttstock assemblies that accept mil-spec receiver extensions.
The kit includes the buffer tube, a 3-ounce carbine buffer, a chrome silicon recoil spring, a castle nut, and an end plate. You get everything needed to complete the rear of your receiver.
The buffer tube has six positions, allowing you to adjust the length of pull to suit your build and your shooting setup.
Yes. The hard-coat anodized finish on the 7075 aluminum tube is designed to resist corrosion and stand up to regular use and field conditions.

SKU: 167514509 • Width: 1.5in • Height: 1.5in • Depth: 8.25in • Weight: 11.5oz





Availability: In Stock
Current Stock: Out of stock
Building or repairing an AR-15 carbine means starting with a solid foundation—and that begins with a reliable buffer tube assembly. The KAK Industry AR-15 carbine buffer tube kit gives you everything needed to complete the rear end of your receiver in one box. Whether you're assembling a new rifle, upgrading an existing build, or replacing worn components, this mil-spec kit includes the tube, buffer, spring, castle nut, and end plate, so you're not hunting down parts separately.
Built from 7075 aluminum with a hard-coat anodized finish, this buffer tube is engineered to handle the wear and pressure cycling of semi-auto fire while resisting corrosion. The 3-ounce carbine buffer pairs with a chrome silicon spring to manage recoil consistently, and the six-position design lets you dial in the length of pull for your body and your mission. Whether you're running a lightweight upper or a heavy barrel setup, adjustability matters when you're fine-tuning the feel of your rifle.
KAK's mil-spec design means it plays nice with standard AR-15 components—your existing buttstock and buffer will mate up without modification. The hard-anodized finish isn't just cosmetic; it's protection against the wear that comes from regular use and cleaning. If you're the type to tinker and improve your rifle piece by piece, or you need a straightforward, complete buffer tube assembly for a new build, this kit cuts out the guesswork.
| Brand | KAK Industry |
| Product Type | AR-15 Carbine Buffer Tube Kit |
| Buffer Weight | 3 oz |
| Tube Material | 7075 Aluminum |
| Finish | Military Hard-Coat Anodized, Black |
| Positions | 6 |
| Spec | Mil-Spec |
| Kit Contents | Buffer Tube, Carbine Buffer, Spring (Chrome Silicon), Castle Nut, End Plate |
Yes. This is a mil-spec carbine buffer tube, so it's compatible with standard AR-15 stocks and buttstock assemblies that accept mil-spec receiver extensions.
The kit includes the buffer tube, a 3-ounce carbine buffer, a chrome silicon recoil spring, a castle nut, and an end plate. You get everything needed to complete the rear of your receiver.
The buffer tube has six positions, allowing you to adjust the length of pull to suit your build and your shooting setup.
Yes. The hard-coat anodized finish on the 7075 aluminum tube is designed to resist corrosion and stand up to regular use and field conditions.
SKU: 167514509 • Width: 1.5in • Height: 1.5in • Depth: 8.25in • Weight: 11.5oz
