Home / Build Kits / Geissele Automatics / Geissele Super Modular MK4 AR-15 Customizable Handguard 15" Black
Geissele Super Modular MK4 AR-15 Customizable Handguard 15" Black
Lowest Price
MSRP
$375.99
Savings
33% off
In Stock at
15 Stores
Compare Deals from 22 Retailers
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Geissele Automatics AR-15 15 Super Modular Rail MK4 M-LOK"
Height: 2.4 "
Inner Diameter: 1.35 "
Length 15";Includes Barrel Nut (Barrel Nut Wrench Sold Separately)"
Outer Diameter: 2.11 "
Weight w/ Hardware: 15.1oz.
Specifications
Description
The Super Modular Rail (SMR) MK4 M-LOK is Geissele's ultra-lightweight M-LOK option. These rails are purpose-built and feature integrated M1913 picatinny rail sections at the fore of the rail in the 3, 6 and 9 o'clock positions. Maximum venting for heat dissipation also dramatically reduces the rails overall weight, while maintaining its same strong and rigid platform. Utilizing Magpul's M-LOK technology at the 3, 6, and 9 o'clock positions, as well as the upper 45 quadrants. The SMR MK4 is both versatile and modular, allowing the user to tailor their platform to his or her unique needs. The SMR MK4 also features Geissele's proprietary 2" long barrel nut. This increases the surface contact where the rail interfaces with the receiver and creates a platform that can be trusted to be straight and true the entire length of the free float rail. This increases accuracy and zero repeatability during disassembly and reassembly when performing maintenance. FeaturesM-LOK comp...
Geissele Super Modular MK4 AR-15 Customizable Handguard 15" Black Price History and Deals
ARMSAGORA tracked 31 days of price history for Geissele Super Modular MK4 AR-15 Customizable Handguard 15" Black. The lowest tracked price in this period was $250.99, with prices ranging up to $375.99 from Apr 23, 2026 through May 23, 2026.
Current price is at the tracked 30-day low
- Current Low
- $250.99
- 30-Day Low
- $250.99
- Average
- $335.37
- Median
- $345.54
- Retailers
- 15







