Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Black
All Geissele handguards3 options
- Black, this page
- Grayout of stock
- OD Greenout of stock
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Geissele
Overview
The Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Black is a handguard. Compare prices from multiple merchants and find the best deal.
Specifications
Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Black
3 options
- Black, this page
- Grayout of stock
- OD Greenout of stock
Available Merchants(8)
Prices checked
Price Alert
September 2026 on GunPartPicker
Geissele Automatics MK4 10" Federal Super Modular Rail M-LOK Black ranked #28 of the 209 handguards builders added on GunPartPicker in September 2026. Builders have been adding it to their builds on GunPartPicker since February 2026. All time, it ranks #30 of the 789 handguards builders have added. Builds with this handguard are split between 5.56 NATO (57%) and 300 Blackout (19%), split between carbine-length (47%) and pistol-length (40%) gas systems, and mostly AR-15 (94%).
It was hard to find in September 2026, in stock on only 15 of the 28 days we checked, and today only Palmetto State Armory has it in stock. It dipped to $321.55 at GritR Sports for a stretch in September 2026, well under its usual $400, so sales do come around. Buying today, the lowest price is $383.99 at Palmetto State Armory, above September's low of $321.55, so a better deal may come back.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
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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 Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black
| Build | Parts | Total |
|---|---|---|
 | 28 | $3961.35 |
 | 7 | $3178.76 |
 | 24 | $4078.52 |
 | 25 | $6950.08 |
 | 13 | $1111.10 |
 | 13 | $1030.51 |
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