Description
The CMMG Resolute 100 Complete Lower 5.56/.223, Black is a ready-to-assemble AR-15 lower receiver that provides the foundation for a custom rifle build. It comes fully assembled with a mil-spec trigger group, stock, and grip, requiring only the mating of an upper receiver to create a functioning firearm. This is a core component for builders seeking a reliable, no-fuss starting point from a trusted manufacturer.
Key Features
- Complete, assembled lower receiver ready for an upper.
- Mil-spec internal components for reliability and broad compatibility.
- Includes 6-position carbine buffer tube and commercial-spec stock.
- Standard A2 pistol grip for a familiar feel.
- Anodized black finish for durability and a classic look.
- Serialized as a firearm, requiring an FFL transfer.
Specifications & Details
| Specification | Detail |
|---|---|
| Caliber | 5.56 NATO / .223 Remington |
| Receiver Material | 7075-T6 Aluminum |
| Finish | Type III Hardcoat Anodized |
| Trigger | Mil-Spec Single Stage |
| Buffer System | Carbine, 6-Position |
| Stock | Commercial-Spec, Collapsible |
Weighing in at approximately 2.5 lbs as configured, the Resolute 100 is built from forged 7075-T6 aluminum, the same material used in military-issue lowers. The included commercial-spec stock is a practical choice that keeps the initial cost down. Here’s the thing—while you can find cheaper stripped lowers, the value here is in the time and hassle you save. You get a fully assembled unit with a solid mil-spec fire control group and buffer system installed, so it’s truly drop-in ready for your chosen upper. At $289.70, it sits in a competitive spot between budget complete lowers and more premium branded options.
Who This Lower Is For
This lower is ideal for the first-time builder who wants to avoid the intricacies of installing a trigger or buffer kit. It’s also a smart pick for the value-focused shooter assembling a “beater” or truck rifle where top-tier components aren’t the priority. If your goal is a simple, reliable AR-15 for general shooting and you’d rather spend your budget on optics or ammo, this CMMG lower makes a lot of sense. It ships to Missouri and compliant US states, making it a straightforward foundation for a wide range of builds.
Pros & Cons
Pros: The biggest advantage is convenience. No gunsmithing required—just pair it with a complete upper and you’re in business. CMMG’s reputation for quality control means you’re getting a solid, in-spec foundation. It’s mil-spec compatible, so upgrading the trigger, grip, or stock later is simple. The price is reasonable for a complete, name-brand lower.
Cons: The commercial-spec buffer tube limits your stock upgrade options compared to a mil-spec tube. The included mil-spec trigger is functional but unremarkable; a notable upgrade path exists. For builders who enjoy the assembly process or want specific premium parts from the start, a stripped lower might be a better route.
Frequently Asked Questions
Q: What upper receivers will this work with?
A: It’s designed to work with the vast majority of mil-spec AR-15 upper receivers. You can confidently pair it with complete uppers from brands like Palmetto State Armory, Aero Precision, or BCM. Just ensure the upper is chambered in 5.56/.223 or a compatible caliber like .300 Blackout.
Q: Is the stock included?
A: Yes. The CMMG Resolute 100 comes as a complete lower, which includes a commercial-spec collapsible stock, an A2 pistol grip, and all necessary internal components like the trigger, hammer, and safety selector. The only major part you need to add is an upper receiver assembly.
Q: What is required to purchase this?
A: As a serialized firearm component, this lower must be shipped to a licensed FFL dealer. You will undergo the same background check process as purchasing a complete rifle. FFL transfer required for firearm purchases, so be sure to coordinate with your local dealer before ordering.
Building an AR-15 doesn’t have to be complicated or break the bank. The CMMG Resolute 100 Complete Lower strips away the complexity, giving you a proven, functional base to build upon. It represents a practical middle ground—better quality than the absolute cheapest options, without the premium price tag of a fully gucci lower. Available at firearms-missouri.com for Missouri residents and nationwide, it’s a solid step toward your next rifle.
Reviews
There are no reviews yet.