Geissele Mk4 M-Lok Super Modular Rail AR-15 Handguard 9.3 inch Black
User Ratings
No ratings yet
Be the first to review this product
Geissele Mk4 M-Lok Super Modular Rail is a free-float AR handguard featuring M-LOK attachment ports and integrated Picatinny rails at the fore end in the 3, 6, and 9 o'clock positions. It uses Geissele's proprietary 2.25 inch long barrel nut to increase surface contact between rail and receiver, creating a stable platform for attachments. Inner diameter is 1.35 inches and outer diameter is 2.11 inches. Mount Type: M-LOK. Made in USA. Package Contents: Geissele Super Modular Handguard Rail MK4 M-LOK.
Specifications
- Manufacturer:
- Geissele Automatics
- Category:
- handguard-rails
- Platforms:
- AR-15
- Interfaces:
- Magpul M-LOKMIL-STD-1913
- Weight:
- 11.8 oz
- Length:
- 9.3"
- MPN:
- 051656BDEMO
- Required Component:
- Yes
Parts Cabinet
Track parts you own or plan to buy.
Where to Buy
Have one to sell?
Sponsored
MantisX
The smart way to train your AR build
Built your rifle — now train it. BlackBeardX installs in minutes and turns your AR into a full dry fire system with smart feedback on every pull.
Shop BlackBeardXPrice History
No Price History Available
Check back later for pricing trends
Price Alert
Sign in to save a target price and receive an email when this component drops.
Sign In to Set AlertSimilar Products
Aero Precision Enhanced M-LOK AR-15 Handguard Gen 2 Kodiak Brown Anodized 12.7in
Aero Precision
$135.99
BCM MCMR-10 10.5" M-LOK Free-Float Handguard, 5.56, Black (BCM-MCMR-10-556-BLK)
Bravo Company Manufacturing (BCM)
$189.99
Geissele MK16 Super Modular Rail 10.5" M-LOK Handguard, DDC (05-1073S)
Geissele Automatics
$331.98
Aero Precision M4E1 Enhanced Gen 2 12" M-LOK Handguard, Black (APRA100217C)
Aero Precision
$124.99
TacFire ACE-20 Series 13.5" M-LOK Free Float AR-15 Handguard, Black (HG20-13)
Tacfire
$40.87
UTG Pro Super Slim 15" M-LOK Drop-In AR-15 Handguard (MTU015SSM)
Leapers, Inc.
$86.34
Knight's Armament Mk 12 Mod 1 Free Float RAS Handguard (21318)
Knights Armament
$401.99
Phase 5 LPSN15 M-LOK Free-Float Quad Rail 15in Handguard
Phase 5
$114.66
Builds Using This Part
No builds yet — be the first to use this part.
Related Guides
Guide
AK Furniture and Ergonomics: Stocks, Handguards, and Practical Setup
How AK stock and handguard choices affect control, heat management, optic height, and practical shooting ergonomics.
5 min read
Guide
AK Optics Mounting Guide: Side Rail vs Dust Cover vs Handguard
Compare the main AK optics mounting approaches and choose the right setup for durability, repeatable zero, and practical shooting performance.
8 min read
Guide
The AK Platform: Core Design, Strengths, and Builder Tradeoffs
A practical AK overview covering operating system basics, parts ecosystem realities, and where the AK platform shines compared to AR-pattern rifles.
8 min read