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B5 Systems
Overview
The B5 Systems SOPMOD Government stock is a polymer, collapsible buttstock designed for Mil-Spec buffer tubes. This model features an FDE finish and a cheek weld optimized for consistent shooter interface. Its design integrates watertight storage compartments for small parts or batteries. GPP build data shows this stock is commonly featured in 5.56 NATO carbine builds. Builders on GPP frequently pair the B5 Systems SOPMOD Government with the Aero Precision Stripped M4e1 AR-15 Lower Receiver - Special Edition - Freedom and the Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3. It is also often seen alongside the B5 Systems Type 23 P-Grip - Coyote Brown and the EOTech XPS2 Holographic Sight, Tan.
Pros
Trade-offs
Based on build data

Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger

EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN

Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc

Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom

Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Fde Cerakote

CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B
Aggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Geissele Automatics Llc Ar-15 Ssa-E X Lightning Bow Trigger | 13 | |
| EOTech XPS2 Holographic Sight, Tan - XPS2-0TAN | 9 | |
| Geissele Automatics Premium Mil-Spec Buffer Tube Assembly With Super 42 H3 - Ddc | 8 | |
| Aero Precision Stripped M4e1 Ar-15 Lower Receiver - Special Edition - Freedom | 6 | |
| Aero Precision M4e1 Stripped Ar-15 Lower Receiver - Fde Cerakote | 6 | |
| CMMG AR-15 HD Pivot and Takedown Pin Parts Kit - 55AFF3B | 6 |
| Platform | Percentage |
|---|---|
| AR-15 | 66.7% |
| AR-10 | 33.3% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 83.3% |
| .223 Wylde | 16.7% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 33.3% |
| Intermediate | 33.3% |
| Carbine | 33.3% |
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