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Geissele Automatics
Overview
This rear sight features a folding design, allowing it to be stowed flat when not in use or when using primary optics. Constructed from 6061-T6 aluminum, it offers a durable and lightweight solution for backup sighting systems. The DDC (Desert Dirt Color) finish provides a non-standard aesthetic. GPP build data shows this sight frequently appears on builds utilizing the Aero Precision M4E1 platform, specifically paired with the Aero Precision M4E1 Stripped AR-15 Lower Receiver - FDE Cerakote and the M4E1 Threaded AR-15 Barreled Upper. Builders commonly integrate it into 5.56 NATO caliber builds with a mid-length gas system, often alongside a Battle Arms Development RACK Ambidextrous Charging Handle and an Aero Precision AR-15 5.56 BCG.
Pros
Trade-offs
Based on build data

Law Tactical AR Folding Stock Adapter Gen 3 - HK
Stock Adapter
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C
Charging Handle
Magpul AFG-2 Angled Fore Grip - Black
Foregrip
Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK
Takedown Pin
Expo Arms Ar-15 Carbine Buffer Spring - 17-7 Steel
Buffer SpringAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Law Tactical AR Folding Stock Adapter Gen 3 - HK | Stock Adapter | 27 |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 19 |
| Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod C | Charging Handle | 18 |
| Magpul AFG-2 Angled Fore Grip - Black | Foregrip | 16 |
| Strike Industries AR-10 Shift Pins, Black - SI-AR10-SHIFT-BK | Takedown Pin | 16 |
| Expo Arms Ar-15 Carbine Buffer Spring - 17-7 Steel | Buffer Spring | 15 |
| Platform | Percentage |
|---|---|
| AR-15 | 84.8% |
| AR-10 | 12.5% |
| AR-9 | 2.7% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 70.3% |
| .223 Wylde | 12.9% |
| .308 Win | 7.9% |
| 300 Blackout | 3% |
| 9mm | 2% |
| .450 Bushmaster | 2% |
| 7.62x51 NATO | 1% |
| .223 Remington | 1% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 44.2% |
| Carbine | 29.9% |
| Rifle | 19.5% |
| Pistol | 5.2% |
| Blowback | 1.3% |
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