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Geissele
Overview
The Geissele Automatics MK4 10" Federal Super Modular Rail is a robust handguard designed specifically for the AR-15 platform, featuring a lightweight aluminum construction and a practical M-LOK mounting interface. With a length of 5 inches, it provides ample space for accessories while maintaining a compact profile, making it ideal for builds that prioritize maneuverability. This handguard is commonly found in carbine gas system builds chambered in 5.56 NATO, making it a versatile choice for a variety of applications.
Specifications
Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Ddc
Available Merchants(8)
Prices checked
Price Alert
Build history on GunPartPicker
Builders have been adding the Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Ddc to their builds on GunPartPicker since February 2026. All time, it ranks #142 of the 708 handguards builders have added.
It was in stock most days in September 2026, and today 7 of the 8 retailers we track have it in stock. It dipped to $408 at BattleHawk Armory for a stretch in September 2026, under its usual $425, so sales do come around. Buying today, the lowest price is $354.99 at Ammunition Depot, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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Frequently Built With
The part most often added in each category by the builds that include this one
Wilson Combat AR-15 Billet Upper Receiver
Yankee Hill Machine Mini QD Flash Hider - 1/2x28
Sons of Liberty Gun Works Combat V2 Barrel 5.56x45mm 11.50", Black - Enhanced Accuracy - 11.5COMBATV2-CHF-5.56
M4E1 PRO Stripped Lower Receiver - M4E1 PRO Stripped Lower Receiver O.D. Green
B5 Systems Type 22 P-Grip - OD Green
Geissele Automatics Super Charging Handle - 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 2 →Builds in the community that include the Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Ddc
| Build | Parts | Total |
|---|---|---|
 | 30 | $3903.97 |
| 19 | $2035.03 |
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