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B5 Systems
Overview
The B5 Systems AR-15 SOPMOD Stock is a collapsible stock designed for mil-spec buffer tubes, providing a secure fit and solid lockup while maintaining a lightweight profile. Made from durable polymer, this stock ensures reliability while offering versatility for various shooting positions. This stock is frequently found in builds utilizing a carbine gas system and chambered in 5.56 NATO, making it a practical choice for both tactical and recreational setups.
Specifications
B5 Systems AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
Available Merchants(8)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have added the B5 Systems AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green to their builds on GunPartPicker. Since April 2026, it ranks #205 of the 560 stocks and braces builders have added.
It was in stock most times we checked in October 2026, and today 7 of the 8 retailers we track have it in stock. Buying today, the lowest price is $95 at Optics Planet, which matches the best price we saw in October.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Read the guide: AR-15 Stock Popularity Report →Check it against the live catalog:
Frequently Built With
The part most often added in each category by the builds that include this one
Rock River Arms Completed Upper Receiver Operator ETR .308/7.62x51mm 16 Inch Barrel 1-10 Twist Mid-Length Profile 5/8-24 Threat Free-Float Handguard
TriggerTech Duty AR- 10 Flat Trigger - AHT-TDB-33-NNF
Anderson Stripped Lower Receiver - No Logo - OD Green
Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green
JP Enterprises Aluminum Ultra Low Mass Bolt Carrier w/ Titanium Firing Pin & Gas Ring
Timber Creek Outdoors AR-15 Buffer Tube - OD Green
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.
Builds Featuring This Part
See all builds →Builds in the community that include the B5 Systems Ar-15 Sopmod Stock Collapsible Mil-Spec Od Green
| Build | Parts | Total |
|---|---|---|
 | 18 | $1314.39 |
 | 6 | $1227.98 |
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