B5 Systems AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green
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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
Build history on GunPartPicker
Builders have been adding the B5 Systems AR-15 SOPMOD Stock Collapsible Mil-Spec OD Green to their builds on GunPartPicker since February 2026. All time, it ranks #281 of the 445 stocks and braces builders have added.
It was in stock most days in August 2026, and today 6 of the 8 retailers we track have it in stock. It dipped to $83.60 at Optics Planet for a stretch in August 2026, well under its usual $95, so sales do come around. Buying today, the lowest price is $95 at Optics Planet, above August's low of $83.60, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 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 5 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
Anderson Stripped Lower Receiver - No Logo - OD Green
Rise Armament Ra-140 Rave Super Sporting Trigger Drop-In Curved
Timber Creek Outdoors AR-15 Buffer Tube - OD Green
Radian Weapons AR-15 Raptor-SD Ambidextrous Charging Handle OD Green
Fortis AR-15 Magazine Catch & Release - ODG
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 2 →Builds in the community that include the B5 Systems Ar-15 Sopmod Stock Collapsible Mil-Spec Od Green
| Build | Parts | Total |
|---|---|---|
 | 18 | $1312.75 |
 | 6 | $1565.98 |
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