
Availability: In Stock
Current Stock: Out of stock
The Kak Industry K-Spec buffer and spring kit for M16-pattern rifles is a practical, no-frills recoil management system designed for shooters who want smooth action without premium pricing. Built around a captured compression design, this A5-length buffer absorbs recoil impulse and helps control muzzle rise where it matters most—at the shooter's shoulder and sight picture. Paired with KAK's flatwire spring, the system works together to reduce bolt bounce and cycle the action more predictably than stock setups. It's the kind of upgrade that makes follow-up shots feel cleaner and groups tighter, whether you're running an AR carbine at the range or in the field.
What sets this kit apart is its simplicity: there are no complex internals to wear out, no finicky tuning required. Drop it in your A5-length buffer tube, swap out the spring, and you're done. KAK Industry manufactures the buffer and spring domestically, so you get a straightforward component built to last without the premium markup of boutique brands. The 5.6-ounce buffer weight strikes a balance for intermediate caliber rifles—heavy enough to manage recoil but light enough to keep bolt speed in a practical range for most ammunition.
This kit ships complete: buffer, flatwire spring, and an install tool so you don't need to hunt down a punch or borrow bench space. If you're building a rifle or swapping out worn buffer components, this is honest kit that works. Keep in mind: this is sized exclusively for A5-length tubes—not compatible with standard-length buffers or carbine-length systems.
| Buffer Weight | 5.6 oz |
| Buffer Length | A5 (rifle/mid-length tube) |
| Spring Type | Flatwire |
| Kit Contents | K-Spec buffer, flatwire spring, install tool |
| Manufacturer | Kak Industry (USA) |
This kit is built for A5-length buffer tubes, which are used in rifle-length and mid-length gas systems. It will not work in standard carbine-length or pistol-length buffer tubes. Verify your tube length before ordering.
The kit includes the K-Spec buffer (5.6 oz), a flatwire spring, and a buffer installation tool. Everything needed to swap out your existing buffer and spring in one package.
The K-Spec uses a captured compression design that absorbs recoil energy and helps minimize muzzle rise. Paired with the flatwire spring, it also reduces bolt bounce and smooths out the overall cycling of the action.
Yes—as long as you have an A5-length buffer tube, this is a straightforward swap with your existing buffer and spring. The included tool makes installation simple.

SKU: 167514502 • Width: 1.25in • Height: 1.25in • Depth: 8.25in • Weight: 8.5oz





Availability: In Stock
Current Stock: Out of stock
The Kak Industry K-Spec buffer and spring kit for M16-pattern rifles is a practical, no-frills recoil management system designed for shooters who want smooth action without premium pricing. Built around a captured compression design, this A5-length buffer absorbs recoil impulse and helps control muzzle rise where it matters most—at the shooter's shoulder and sight picture. Paired with KAK's flatwire spring, the system works together to reduce bolt bounce and cycle the action more predictably than stock setups. It's the kind of upgrade that makes follow-up shots feel cleaner and groups tighter, whether you're running an AR carbine at the range or in the field.
What sets this kit apart is its simplicity: there are no complex internals to wear out, no finicky tuning required. Drop it in your A5-length buffer tube, swap out the spring, and you're done. KAK Industry manufactures the buffer and spring domestically, so you get a straightforward component built to last without the premium markup of boutique brands. The 5.6-ounce buffer weight strikes a balance for intermediate caliber rifles—heavy enough to manage recoil but light enough to keep bolt speed in a practical range for most ammunition.
This kit ships complete: buffer, flatwire spring, and an install tool so you don't need to hunt down a punch or borrow bench space. If you're building a rifle or swapping out worn buffer components, this is honest kit that works. Keep in mind: this is sized exclusively for A5-length tubes—not compatible with standard-length buffers or carbine-length systems.
| Buffer Weight | 5.6 oz |
| Buffer Length | A5 (rifle/mid-length tube) |
| Spring Type | Flatwire |
| Kit Contents | K-Spec buffer, flatwire spring, install tool |
| Manufacturer | Kak Industry (USA) |
This kit is built for A5-length buffer tubes, which are used in rifle-length and mid-length gas systems. It will not work in standard carbine-length or pistol-length buffer tubes. Verify your tube length before ordering.
The kit includes the K-Spec buffer (5.6 oz), a flatwire spring, and a buffer installation tool. Everything needed to swap out your existing buffer and spring in one package.
The K-Spec uses a captured compression design that absorbs recoil energy and helps minimize muzzle rise. Paired with the flatwire spring, it also reduces bolt bounce and smooths out the overall cycling of the action.
Yes—as long as you have an A5-length buffer tube, this is a straightforward swap with your existing buffer and spring. The included tool makes installation simple.

SKU: 167514502 • Width: 1.25in • Height: 1.25in • Depth: 8.25in • Weight: 8.5oz