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15" Super Modular Rail Mk-8 M-LOK

15" Super Modular Rail Mk-8 M-LOK

Geissele Automatics · Rails & Handguards

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Best price

$375.00at Brownells

In stock Lowest in 30 dayschecked Nov 11, 2026

Buy at Brownells

Compare 9 stores

Where to buy

StorePriceAvailabilityBuyAdd to build
Brownells Best price $375.00checked Nov 11, 2026 In stock Buy at Brownells
OpticsPlanet $375.00Salechecked Nov 11, 2026 In stock Buy at OpticsPlanet
Ammunition Depot $375.00checked Nov 11, 2026 In stock Buy at Ammunition Depot
Battlehawk Armory $264.99checked Nov 11, 2026 Check store Buy at Battlehawk Armory
GrabAGun $309.99Salechecked Nov 12, 2026 Check store Buy at GrabAGun
AR15Discounts $375.00checked Nov 11, 2026 Check store Buy at AR15Discounts
Dirty Bird $375.00checked Nov 11, 2026 Check store Buy at Dirty Bird
Palmetto State Armory $375.99checked Nov 11, 2026 Check store Buy at Palmetto State Armory
GunMag Warehouse $375.99checked Oct 7, 2026 Out of stock Buy at GunMag Warehouse

Prices and availability change often, so confirm on the store's site before you buy. We may earn a commission from these links.

Price history

Lowest in-stock price in the last 30 days: $375.00 at Ammunition Depot. Dashed line = out of stock. Tracking since Sep 27, 2026.

Show the prices as a table
StoreLatestLowestHighest
AR15Discounts$375.00$375.00$375.00
Ammunition Depot$375.00$375.00$375.00
Battlehawk Armory$264.99$264.99$264.99
Brownells$375.00$375.00$375.00
Dirty Bird$375.00$375.00$375.00
GrabAGun$309.99$309.99$309.99
GunMag Warehouse—$375.99$375.99
OpticsPlanet$375.00$375.00$375.00
Palmetto State Armory$375.99$375.99$375.99

Since Sep 27, 2026.

About this part

The 15" Super Modular Rail Mk-8 M-LOK is a 15" AR-15 handguard from Geissele Automatics. It's sold by 9 stores (3 in stock), from $264.99 to $375.99. The lowest in-stock price in the last 30 days was $375.00 at Ammunition Depot.

Fits and works with

Handguard length
15" · Barrels

Specifications

Manufacturer
Geissele Automatics
Platform
AR-15
Length
15"
Attachment
M-LOK

From the manufacturer

Ergonomic, lightweight modular rail system offers plenty of M-LOK attachment points along the entire length. Single piece assembly is machined from a semi-billet extrusion of aircraft grade aluminum for enhanced strength and performance to weight ratio. Free floating handguard attaches via long barrel nut machined from aircraft grade aluminum with a hardcoat anodized surface. Handguard fits tightly on the barrel nut and clamps securely by two cross bolt. M-LOK technology allows shooter to place accessory rails anywhere along the length of the rail in 45Adeg intervals. Handguard has two standard, non-rotating QD slots on either side. Please note that a gas block is no longer included Mfg: Geissele Automatics SPECS: Aluminum, hardcoat anodized, matte black. 2.2" (cm) high, 1.25" (cm) I.D., 1.97 (cm) O.D.

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$375.00 at Brownells
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