Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black

Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black - Handguard for AR-15 - view 1
Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black - Handguard for AR-15 - view 2
Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black - Handguard for AR-15 - view 3
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Geissele

Overview

The Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black is a handguard. Compare prices from multiple merchants and find the best deal.

Specifications

MPN05-430B
Handguard Length10
PlatformAR-15
ColorBlack
Mounting InterfaceM-LOK
MaterialAluminum
Construction TypeFree-Float
FinishHardcoat Anodized

Available Merchants(8)

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GritR Sports
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$322
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KY Gun Company
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Optics Planet
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BattleHawk Armory
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Palmetto State Armory
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Brownells
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Primary Arms
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Classic Firearms
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Frequently Built With

Based on build data

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

87.8%
AR-1587.8%
AR-109.3%
AR-93%

Caliber

64.7%
5.56 NATO64.7%
.223 Wylde14.6%
300 Blackout7.6%
.308 Win3.9%
.450 Bushmaster1.8%
Other7.4%

Gas System

43.7%
Mid-Length43.7%
Carbine27.7%
Rifle16.7%
Pistol10.7%
Blowback1%
Other0.3%
Frequently Built With Products
ProductCategoryTimes Built Together
Wilson Combat Ar-15 Lo-Profile Gas Block .750" BlackGas Block138
Battle Arms Development Rack Ambidextrous Ar-15 Charging Handle - Mod CCharging Handle136
Wmd Guns Ar-15 Gas Tube Nitromet Mid-LengthGas Tube126
Wilson Combat Ar-15 Billet Upper ReceiverUpper Receiver120
BLEM PSA AR15 Complete Classic Stealth Lower, BlackLower Receiver109
Bravo Company Mfg Upper Receiver Assembly w/ Laser T-Markings, Hard Coated Anodized - 4-UR-M4Upper Receiver91
Build Platform Breakdown
PlatformPercentage
AR-1587.8%
AR-109.3%
AR-93%
Build Caliber Breakdown
CaliberPercentage
5.56 NATO64.7%
.223 Wylde14.6%
300 Blackout7.6%
.308 Win3.9%
.450 Bushmaster1.8%
6mm ARC1.6%
9mm1.5%
6.5 Grendel1%
.458 SOCOM0.9%
7.62x39mm0.8%
.223 Remington0.4%
.350 Legend0.3%
.204 Ruger0.2%
6.8 SPC II0.2%
7.62x51 NATO0.2%
6.5 Creedmoor0.1%
8.6 Blackout0.1%
.22 ARC0.1%
Build Gas System Breakdown
Gas SystemPercentage
Mid-Length43.7%
Carbine27.7%
Rifle16.7%
Pistol10.7%
Blowback1%
Proprietary0.2%
Intermediate0.1%

Builds Featuring This Part

See all 6

Builds in the community that include the Geissele Automatics Llc Mk4 10" Federal Super Modular Rail M-Lok Black

BuildPartsTotal
16" build
28$3521.31
carbine 10.5" 5.56
7$1971.58
8" SBR
24$3662.43
Spike's tactical 9" build
25$6940.58
10.5" 5.56
13$1016.61
PSA 10.5" 5.56
13$919.80

Customer reviews

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Top reviews

J
jebstewart11
Geissele Mk4 10 inch rail
Reviewed on May 14, 2026Verified with Build

Geisseles Mk4 Federal rail at 10 inches is light for its size, the cutouts on the body shave a lot of grams. Free float, no barrel contact. M-LOK slots are crisp. Bolt up system is straightforward with their barrel nut. Stays cool through a 30 round dump.

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