Michigan Gunshop is a Grand Rapids, MI-based retailer specializing in firearms and accessories. The AR-15 Buffer Tube Kit – Mil-Spec is a complete kit for upgrading or replacing your AR-15’s buffer system. Built to mil-spec standards, this kit ensures reliable performance for your rifle. Available now for $103.68 with same-day shipping.
Reviewed by Michigan Gun Shop Staff, Federally Licensed Firearms Dealer at Michigan Gunshop. Type-1 FFL holders, Class 3 SOT, serving Michigan since 2014.
Last updated: May 2026
Specifications
| Product Type | AR-15 Buffer Tube Kit |
|---|---|
| Material | 7075-T6 Aluminum |
| Manufacturing | CNC Machined |
| Finish | Type III Hardcoat Anodized |
| Hardness/Quality | Mil-Spec |
| Compatibility | AR-15 Rifles |
| Installation/Usage | Rifle-Length Buffer Setup |
| Weight | 8.5 oz |
| Dimensions | 7″ Length |
| Country of Origin | USA |
| Condition | New |
| SKU | MGS-BTK-01 |
Key Features
- Mil-Spec 7075-T6 Aluminum Construction
- Type III Hardcoat Anodized Finish
- Includes Buffer Tube, Spring, and Buffer
- CNC Machined for Precision Fit
- Compatible with Rifle-Length Stocks
Who It’s For
Buy it if:
- You’re building or upgrading an AR-15
- You need a reliable mil-spec buffer tube kit
- You want a durable, precision-machined component
Skip it if:
- You need a pistol-specific buffer tube
- You’re looking for a budget import option
Pros & Cons
Pros:
- ✅ Mil-Spec Quality Assurance
- ✅ Durable 7075-T6 Aluminum
- ✅ Complete Kit Ready to Install
- ✅ Precision CNC Machining
- ✅ Type III Hardcoat Anodized Finish
Cons:
- ❌ Not Compatible with Pistol Builds
- ❌ Higher Price than Budget Options
Comparison
| Feature | Michigan Gunshop | Budget Import | Premium Brand |
|---|---|---|---|
| Material | 7075-T6 Aluminum | 6061 Aluminum | 7075-T6 Aluminum |
| Quality | Mil-Spec | Commercial | Mil-Spec |
| Compatibility | AR-15 Rifles | AR-15 Rifles | AR-15 Rifles |
| Shipping | Same-Day | 1-2 Weeks | 3-5 Days |
| Lifespan/Durability | High | Medium | High |
| Price | $103.68 | $69.99 | $249.99 |
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FAQ
What does a buffer tube do on an AR-15?
The buffer tube houses the buffer and spring, which absorb recoil and cycle the bolt carrier group.
Does an AR-15 need a buffer tube?
Yes, the buffer tube is essential for proper operation of the AR-15’s recoil system.
Where can I buy AR-15 buffer tube kits online?
Michigan Gunshop offers AR-15 buffer tube kits with same-day shipping from Grand Rapids, MI.
Is this compatible with all AR-15 rifles?
This kit is compatible with standard AR-15 rifles using rifle-length buffer systems.
What’s included in the kit?
The kit includes the buffer tube, buffer spring, and buffer weight.
Is this kit mil-spec?
Yes, this buffer tube kit meets mil-spec standards.
Can I use this for a pistol build?
No, this kit is designed for rifle-length buffer systems.
✅ In stock — ready to ship today
✅ Same-day shipping from Grand Rapids, MI
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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About this review + “Last updated: May 2026”
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