KAK Industry AR-15 Mil-Spec Carbine Buffer Tube
Click to see full view
KAK Industry
Overview
The KAK Industry AR-15 Mil-Spec Carbine Buffer Tube is designed specifically for use in carbine-length builds, adhering to the Mil-Spec standard for compatibility with a wide range of stocks. This tube is essential for housing the buffer and spring, ensuring smooth cycling of the action in your rifle. It's commonly found in mid-length gas system configurations chambered in 5.56 NATO, making it a reliable choice for those looking to build or upgrade their AR-15.
Specifications
September 2026 on GunPartPicker
KAK Industry AR-15 Mil-Spec Carbine Buffer Tube ranked #14 of the 49 buffer tubes builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #26 of the 64 buffer tubes builders have added. Builds with this buffer tube are mostly chambered in 5.56 NATO (85%), mostly on mid-length gas (67%, then pistol-length 22%), and mostly AR-15 (92%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today only KAK Industry has it in stock. Prices barely moved in September 2026, holding around $19.80, so there haven't been real sales lately. Buying today, the lowest price is $22 at KAK Industry, above September's low of $19.80, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 30+ retailers
Not sure which buffer tube to pick?
We ranked every buffer tube by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Buffer Tube Guide →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Lower Receiver Forged
CMMG AR-15 A2 Pistol Grip
Yankee Hill Machine .223 Rem/5.56 Flat Top Stripped Upper Receiver, Hardcoat Anodized Matte Black - 110
Rise Armament Ra-140 Rave Super Sporting Trigger Drop-In Flat
Daniel Defense Carbine Recoil Buffer - H-Buffer - 4.0 Oz
CMMG AR-15 HD Pivot and Takedown Pin Parts KIT - 55AFF3B
Build Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
Builds Featuring This Part
See all 3 →Builds in the community that include the Kak Industry Ar-15 Mil-Spec Carbine Buffer Tube
| Build | Parts | Total |
|---|---|---|
 | 24 | $1333.09 |
 | 24 | $524.96 |
 | 24 | $892.75 |
No reviews yet. Be the first to review this product!