CMMG ENDEAVOR Mk4/AR15 Complete Lower Receiver Mil-Spec Trigger Charcoal Green
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CMMG
Overview
The CMMG ENDEAVOR Mk4 Complete Lower Receiver is designed for AR-15 builds, featuring a fully assembled lower that simplifies the construction process. This model includes a mil-spec trigger with a pin diameter of .154 inches, ensuring compatibility with a wide range of aftermarket triggers and components. This lower receiver is commonly found in mid-tier builds, where builders appreciate the balance of functionality and ease of assembly.
Specifications
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Frequently Built With
Based on build data
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Radical Firearms 5.56 Barreled Ar-15 Upper - 16" - Primary Arms Exclusive
Upper Receiver
Wilson Combat Ar-15 Billet Upper Receiver
Upper Receiver
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
TriggerBuild Configuration Breakdown
Aggregated and anonymized data showing how builders use this product
PlatformBased on real build data showing which platform (AR-15, AR-10, AR-9) builders pair with this product.
CaliberBased on real build data showing which calibers builders choose alongside this product.
Gas SystemBased on real build data showing which gas system lengths builders use with this product.
| Product | Category | Times Built Together |
|---|---|---|
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 248 |
| Radical Firearms 5.56 Barreled Ar-15 Upper - 16" - Primary Arms Exclusive | Upper Receiver | 185 |
| Wilson Combat Ar-15 Billet Upper Receiver | Upper Receiver | 183 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 168 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 155 |
| Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger | Trigger | 150 |
| Platform | Percentage |
|---|---|
| AR-15 | 100% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 71.3% |
| .223 Wylde | 10.1% |
| 300 Blackout | 6.6% |
| .308 Win | 3.3% |
| 9mm | 2.1% |
| .450 Bushmaster | 1.2% |
| 6mm ARC | 1.2% |
| 7.62x39mm | 0.9% |
| 6.5 Grendel | 0.8% |
| .458 SOCOM | 0.6% |
| .350 Legend | 0.3% |
| 6.5 Creedmoor | 0.3% |
| .45 ACP | 0.2% |
| .223 Remington | 0.2% |
| .204 Ruger | 0.1% |
| .224 Valkyrie | 0.1% |
| .50 Beowulf | 0.1% |
| 5.7x28mm | 0.1% |
| 6.8 SPC II | 0.1% |
| 7.62x51 NATO | 0.1% |
| 8.6 Blackout | 0% |
| .22 ARC | 0% |
| .22 LR | 0% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 49.9% |
| Carbine | 24% |
| Rifle | 13.2% |
| Pistol | 11.4% |
| Blowback | 1.2% |
| Intermediate | 0.2% |
| Proprietary | 0.1% |
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