Geissele AR15/M4 Reaction Block (Mil-Spec Buffer Tube Only) 05-314
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Geissele Automatics
Overview
The Geissele AR15/M4 Reaction Block is a Mil-Spec buffer tube designed as a tube only assembly, providing a reliable foundation for your AR-15 build. This buffer tube is critical for proper function and cycling of the action, ensuring compatibility with Mil-Spec components and accessories. Commonly seen in builds featuring a mid-length gas system and chambered in 5.56 NATO, this component is essential for achieving a smooth and reliable shooting experience.
Specifications
Geissele AR15/M4 Reaction Block (Mil-Spec Buffer Tube Only) 05-314
Available Merchants(6)
Frequently Built With
Based on build data
Bravo Company Manufacturing Mk2 Recoil Mitigation System - Mod 1 - T2
Sprinco Usa Reduced Power Kit Buffer 4-Coil Bolt Extractor Spring
Radian Forward Assist - 7075 Aluminum - Black
Forward Assist
Jp Enterprises Silent Captured Spring for Law Tactical Folder
Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Ddc
Fn America Take Down Pin
Build 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 |
|---|---|---|
| Bravo Company Manufacturing Mk2 Recoil Mitigation System - Mod 1 - T2 | 12 | |
| Sprinco Usa Reduced Power Kit Buffer 4-Coil Bolt Extractor Spring | 9 | |
| Radian Forward Assist - 7075 Aluminum - Black | Forward Assist | 8 |
| Jp Enterprises Silent Captured Spring for Law Tactical Folder | 8 | |
| Geissele Automatics Llc Ar-15 Ultra Precision 5 Axis Trigger Guard Ddc | 8 | |
| Fn America Take Down Pin | 8 |
| Platform | Percentage |
|---|---|
| AR-15 | 93.8% |
| AR-9 | 6.3% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 76.5% |
| .223 Wylde | 11.8% |
| .450 Bushmaster | 11.8% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 57.9% |
| Carbine | 21.1% |
| Rifle | 15.8% |
| Pistol | 5.3% |
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