CMMG AR-15 Carbine Buffer Tube Kit
or 4 interest-free payments of $15.67 with 
6 Magazines Per Order: Due to extreme volume, we are limiting sales of magazines to 6 per customer order. This applies to individual and bundled magazines. AT3 reserves the right to cancel any order over the 6 magazine limit.
- Free standard shipping on orders $139+ details
- 90-day no-hassle returns policy
- Backed by the CMMG Warranty! what it covers
Frequently bought together
From orders that included this item
Product description
Finish Your AR-15 Build or Convert From a Fixed Stock to Adjustable
The CMMG AR-15 Carbine Buffer Tube Kit is a complete receiver extension kit for your next AR-15 build or upgrade. Whether you’re starting from scratch or converting a rifle’s stock, this kit includes all the essential components needed to get your carbine stock installed and running reliably. Built to mil-spec standards, the 6-position buffer tube offers solid compatibility with most AR-15 carbine-style stocks. Everything’s included, from the castle nut and end plate to the buffer and spring, so you can get straight to building.
Features
- Complete buffer assembly for AR-15 builds
- Compatible with most mil-spec carbine stocks
- Durable, corrosion-resistant construction
Includes
- Carbine 6-Position Buffer Tube
- Receiver End Plate
- Castle Nut
- Carbine Recoil Spring
- Carbine Weight Buffer
Specifications
- Brand: CMMG
- Model: AR-15 Carbine Buffer Tube Kit
- MPN: 55CA6C7
- Fit: Mil-spec AR-15 Lower
- Firearm Type: AR-15
- Color: Black
- Material: Steel
- Finish: Nitride and Stainless
Installation
Customer reviews
No reviews yet. Bought this one? Tell the next builder how it went.
Questions & Answers
No questions yet. Ask about fit, install or compatibility and our team answers within a business day.
Warranty & returns
Backed by the CMMG Warranty!
CMMG Warranty
Seller warrants to Buyer that for a period of 6 months from the Delivery Date, all Goods will be:
- Free from any defects in workmanship, material, and design
- Conform to applicable specifications[, drawings, designs, samples and other requirements specified by Buyer]
- Fit for their intended purpose and operate as intended
- Merchantable
- Free and clear of all liens, security interests or other encumbrances
- Not infringe or misappropriate any third party’s patent or other intellectual property rights.
Inspection and Rejection of Nonconforming Goods
The Buyer has the right to inspect the Goods for a period of thirty (30) days after the Delivery Date. Buyer, at its sole option, may inspect all or a sample of the Goods and may reject all or any portion of the Goods if it determines the Goods are non-conforming or defective.
If Buyer rejects any portion of the Goods, Buyer has the right, effective upon written notice to Seller, to:
- Rescind the Order in its entirety
- Accept the Goods at a reasonably reduced price
- Reject the Goods and require replacement of the rejected Goods.
NOTES:
If Buyer requires replacement of the Goods, Seller shall, at its expense, promptly/within 30 days replace the nonconforming Goods and pay for all related expenses, including, but not limited to, transportation charges for the return of the defective goods and the delivery of replacement Goods.
If Seller fails to timely deliver replacement Goods, Buyer may replace them with goods from a third party and charge Seller the cost thereof and terminate this Order for cause pursuant to Section 20.
Any inspection or other action by Buyer under this Section shall not reduce or otherwise affect Seller’s obligations under the Order, and Buyer shall have the right to conduct further inspections after Seller has carried out its remedial actions.
Disclaimer: Manufacturer’s warranty is subject to change without prior notice.
90-day no-hassle returns
The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.
If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.
