CMMG 55CA9D7 AR-15 MK4 Receiver Extension Black Steel Buffer Tube
Shop CMMG Products
CMMG | 55CA9D7 (MK4 Receiver Extension) | MPN: 615 | UPC: 816422020676 | Black / Hard Coat Anodized Matte Black | RECEIVER EXTENSION | Steel | 11.700" Overall Length | 0.26 lbs
Mil-spec diameter buffer tube. Compatible with all mil-spec AR-15 lower receivers and mil-spec stocks.
Specifications:
- Brand: CMMG
- Model: 55CA9D7 (MK4 Receiver Extension)
- MPN: 615
- UPC: 816422020676
- Category: Small AR Parts
- Product Type: 3
- Caliber: RECEIVER EXTENSION
- Frame Material: Steel
- Material: Steel
- Finish: Hard Coat Anodized Matte Black
- Color: Black
- Overall Length: 11.700"
- Weight: 0.26 lbs
- Compatibility: All Mil-Spec Diameter Stocks; Mil-Spec AR-15 Lower Receivers
- Fitment: Mil-spec diameter buffer tube
- Alternate Titles: CMMG 55CA9D7 AR-15 MK4 Receiver Extension Black Steel Buffer; CMMG 55CA9D7 Receiver Extension MK4 Black Steel AR Platform
Technical Specifications
| Action Type | Buffer Tube |
|---|---|
| Finish | Black |
| Weight | 0.25 lbs |
| Trigger Type | Steel |
| Manufacturer | CMMG |
| Model | 55CA9D7 |
| SKU | S83053 |
| UPC | 816422020676 |
| Availability | In Stock |
Customer Reviews
No reviews yet. Be the first to review this product!
Product Discussion
Questions or comments about this product? Join the discussion below. Please review our Community Guidelines before posting.
Shipping & Returns
Shipping Information
- Orders typically process within 1-2 business days
- Ships via major carriers with tracking
- Tracking information provided for all orders
- Shipping costs calculated at checkout based on weight and destination
Return Policy
- 30-day return policy on accessories and non-firearms
- Items must be unused and in original packaging
- Contact us for return authorization before shipping items back
- Original shipping costs are non-refundable
Questions?
Contact us at 502-272-4859 or submit a question for assistance with shipping or returns.
What is MAP Pricing?
MAP stands for Minimum Advertised Price. It's a policy set by manufacturers that limits how low retailers can advertise their prices.
The good news? We can often sell below MAP - we just can't show that price publicly. When you request a price by email or add to cart, you'll see our actual (often lower) price.
This isn't a trick - it's how we stay compliant while still offering you the best deals possible.