CMMG RESOLUTE Mk4 Upper 5.56x45 NATO 16.1 In Armor Black
Shop CMMG ProductsCMMG | RESOLUTE Mk4 | MPN: 55BC7C3-AB | UPC: 810097503823 | 5.56x45 NATO | 16.1" Barrel | Direct Impingement | Armor Black | 3.00
CMMG RESOLUTE Mk4 upper group chambered in 5.56x45mm NATO. Includes CMMG ZEROED bolt carrier group, AR15 polymer dust cover, ambidextrous charging handle, and 5.56mm muzzle brake.
Features a 16.1" 4140CM SBN barrel with 1:7 twist, mid-length gas system, non-adjustable 0.750" gas block, billet 6061-T6 aluminum upper receiver, and CMMG EML15 M-LOK handguard.
Specifications:
- Brand: CMMG
- Model: 55BC7C3-AB
- Product Type: Upper Receiver
- Platform: Mk4
- MPN: 55BC7C3-AB
- UPC: 810097503823
- Caliber: 5.56x45 NATO
- Operating System: Direct Impingement
- Barrel Length: 16.1"
- Barrel Twist: 1:7
- Barrel Contour: MT
- Barrel Material: 4140CM, SBN
- Muzzle Device: CMMG ZEROED Muzzle Brake
- Muzzle Thread: 1/2 x 28
- Gas Port Location: Mid
- Gas Block: 0.750", Non-Adjustable
- Upper Receiver: Billet 6061-T6 Aluminum
- Handguard: CMMG EML15 M-LOK
- Finish: Armor Black
- Color: Armor Black
- Charging Handle: CMMG ZEROED Ambidextrous
- Dust Cover: ZEROED AR15 Polymer
- Bolt Carrier Group: Included
- Weight: 3.00
- Length: 25"
- Warranty: Lifetime Quality Guarantee
Technical Specifications
| Caliber | 5.56x45 NATO |
|---|---|
| Finish | Armor Black |
| Weight | 5 lbs |
| Manufacturer | CMMG |
| Model | 55BC7C3-AB |
| SKU | H507458 |
| UPC | 810097503823 |
| Availability | In Stock |
Customer Reviews
No reviews yet. Be the first to review this product!
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 407-347-9840 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.