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Foxtrot Mike Products
Overview
The FM Products Mike-9 9mm Luger Upper Receiver is a complete assembly designed specifically for AR-9 platforms, featuring a compact 5-inch barrel length that enhances maneuverability while maintaining performance. The 1:10 twist rate ensures stability for a variety of 9mm projectiles, while the 1/2x36 thread pitch offers compatibility with standard muzzle devices. This upper receiver is frequently found in builds focused on 9mm caliber setups, making it a solid choice for those looking to customize their AR-9 configuration.
Based on build data

BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock
Lower Receiver
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black
Gas BlockAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 360 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 259 |
| Aero Precision M4e1 Complete Lower Receiver W/moe Sl Grip & Sl-S Carbine Stock | Lower Receiver | 231 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 166 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 161 |
| Wilson Combat Ar-15 Lo-Profile Gas Block .750" Black | Gas Block | 143 |
| Platform | Percentage |
|---|---|
| AR-9 | 100% |
| Caliber | Percentage |
|---|---|
| 9mm | 100% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50.2% |
| Carbine | 24.5% |
| Rifle | 12.6% |
| Pistol | 11.3% |
| Blowback | 1.1% |
| Intermediate | 0.2% |
| Proprietary | 0.1% |
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