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Leupold
Overview
The Leupold Mark 4HD 2.5-10X42 is a first focal plane variable rifle scope designed for precision shooting across various distances. With a magnification range of 2.5X to 10X and a 42mm objective diameter, it provides a clear and bright sight picture, allowing for effective target acquisition at both close and long ranges. This scope is commonly found in tactical or precision builds where versatility and accuracy are essential.
Based on build data

Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock Adapter
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging Handle
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown PinAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 34 |
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 33 |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 31 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 26 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 26 |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 24 |
| Platform | Percentage |
|---|---|
| AR-15 | 83.2% |
| AR-10 | 15.5% |
| AR-9 | 1.3% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 69.6% |
| .308 Win | 10.6% |
| .223 Wylde | 10.6% |
| 300 Blackout | 2.4% |
| 6mm ARC | 1.4% |
| .450 Bushmaster | 1.4% |
| 7.62x39mm | 1.4% |
| 6.5 Creedmoor | 1% |
| .204 Ruger | 0.5% |
| 7.62x51 NATO | 0.5% |
| 9mm | 0.5% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 55.9% |
| Carbine | 21.1% |
| Rifle | 17.1% |
| Pistol | 5.3% |
| Proprietary | 0.7% |
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