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B5 Systems
Overview
The B5 Systems Polymer Trigger Guard in OD Green is designed to provide a reliable and sturdy interface for your AR-15's trigger assembly. Made from durable polymer, this trigger guard offers a lightweight solution while maintaining functionality and ease of use, particularly in various shooting conditions. This component is frequently found in builds that utilize a carbine gas system and chamber the popular 5.56 NATO caliber.
B5 Systems Polymer Trigger Guard - OD Green
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B5 Systems Polymer Trigger Guard - OD Green was the eighth most added trigger guard on GunPartPicker in August 2026, behind the Strike Industries Cobra Billet Aluminum Trigger Guard - Black, with about 3% of all trigger guards added to builds. Up from #10 in July. Builds with this trigger guard are split between 5.56 NATO (59%) and .223 Wylde (18%), split between carbine-length (40%) and mid-length (40%) gas systems, and mostly AR-15 (80%, then AR-10 20%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 6 of the 7 retailers we track have it in stock. It dipped to $5.99 at Optics Planet for a stretch in August 2026, well under its usual $7.13, so sales do come around. Buying today, the lowest price is $7.13 at Brownells, above August's low of $5.99, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every trigger guard by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Trigger Guard Guide →The part most often added in each category by the 123 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the B5 Systems Polymer Trigger Guard - Od Green
| Build | Parts | Total |
|---|---|---|
 | 25 | $790.69 |
 | 30 | $3836.02 |
 | 10 | $651.40 |
 | 24 | $1951.59 |
 | 18 | $1295.92 |
 | 19 | $1097.71 |
 | 15 | $705.13 |
 | 21 | $1528.09 |
 | 28 | $4805.12 |
 | 29 | $5323.28 |
 | 22 | $2446.53 |
 | 17 | $1002.16 |
2 global ratings
Top reviews
Great trigger guard for the price. The polymer feels durable enough for my 5.56 carbine. It's not metal, obviously, but for a range toy or even a general use rifle, it's plenty sturdy. The color is a nice touch for muted builds.
Picked this up for a new build. The OD green matches my furniture well. Install was straightforward, it holds up during range days. Nothing fancy, but it does the job right.
