Truglo XR21, Reflex, 21X16mm, 3 MOA Red Dot, Black, RMS-C Footprint
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TruGlo
Overview
The TruGlo XR21 is a compact reflex optic featuring a 21x16mm lens and a 3 MOA red dot reticle, designed to provide quick target acquisition with precision. The black finish helps reduce glare and enhances durability, making it suitable for various shooting environments. This optic is commonly found on tactical builds and competitive setups where fast sighting is essential.
Specifications
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Frequently Built With
Based on build data
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock Adapter
Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger
Trigger
Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green
Charging HandleBuild 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 |
|---|---|---|
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 139 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 86 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 83 |
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 65 |
| Geissele Automatics Llc Ar-15 Ssa X Lightning Bow Trigger | Trigger | 59 |
| Radian Raptor Charging Handle & Talon Safety Selector Combo - Od Green | Charging Handle | 57 |
| Platform | Percentage |
|---|---|
| AR-15 | 87.9% |
| AR-10 | 9% |
| AR-9 | 3.1% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 75.1% |
| .223 Wylde | 8.9% |
| 300 Blackout | 5.5% |
| 9mm | 2.5% |
| .308 Win | 2.5% |
| 7.62x39mm | 1.3% |
| .450 Bushmaster | 0.9% |
| 6.5 Grendel | 0.8% |
| 6mm ARC | 0.8% |
| .45 ACP | 0.6% |
| .458 SOCOM | 0.4% |
| .223 Remington | 0.2% |
| .350 Legend | 0.2% |
| .50 Beowulf | 0.2% |
| 7.62x51 NATO | 0.2% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 52% |
| Carbine | 28.5% |
| Rifle | 9.6% |
| Pistol | 8.9% |
| Blowback | 0.7% |
| Intermediate | 0.2% |
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