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Arisaka Defense

Low Profile Picatinny Rail - Keymod Low Profile 3 Slot 1.37 Black

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

Low-profile Keymod-compatible

Picatinny rail from Arisaka Defense

5 Picatinny

Attachment slots

Measures 2.15

Inches in length

Stands 0.277

Inches above the mounting surface

Constructed From

6061 T-6 aluminum

$27.00
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SKU: 100028937

Overview

This low-profile rail is designed to add Picatinny attachment points to a KeyMod handguard while keeping the setup as compact as possible. It is intended for hunters and shooters who want to mount accessories without adding unnecessary bulk or height. The 5-slot layout provides room for compatible gear, and the black finish keeps the profile understated. At 0.6 oz, it is a lightweight option for building a streamlined rifle setup.

Why Hunters Choose the Arisaka Defense

Low-profile Design

Keeps accessories closer to the

Five Picatinny

Attachment slots for accessory mounting

Uses Bcm

Reverse-threaded KeyMod screws to distribute

6061 T-6

Aluminum construction

Lightweight 0.6

Oz

Key Features

  • Low-profile KeyMod-compatible Picatinny rail from Arisaka Defense.
  • Provides 5 Picatinny attachment slots.
  • Measures 2.15 inches in length.
  • Stands 0.277 inches above the mounting surface.
  • Constructed from 6061 T-6 aluminum.
  • Finished in black and weighs 0.6 oz.

Best Used For

  • KeyMod handguard users wanting a low-profile Picatinny mounting point for compact accessories.
  • Hunters building a lighter, less bulky setup on a KeyMod platform.
  • Shooters needing five Picatinny slots for lights, grips, or other rail-mounted accessories.
  • Users who prefer accessories mounted close to the handguard for a streamlined profile.
  • Anyone replacing taller KeyMod-to-Picatinny adapters with a more minimal rail section.

Specifications

ColorBlack
Construction Material6061 T-6 Aluminum
FitsKeyMod
Height Above Mounting Surface0.277 in
Length2.15 in
Picatinny Attachment Slots5
Screw TypeBCM reverse threaded KeyMod screws
Weight0.6 oz

Pros

  • Low-profile design keeps accessories closer to the handguard.
  • Provides five Picatinny attachment slots for accessory mounting.
  • Uses BCM reverse-threaded KeyMod screws to distribute load across more slots.
  • 6061 T-6 aluminum construction.
  • Lightweight at 0.6 oz.
  • Black finish matches a low-visibility setup.

Considerations & Trade-offs

  • Fits KeyMod handguards only, so it is not a universal Picatinny solution.
  • The low-profile design prioritizes minimal bulk, which may leave less clearance than taller rail adapters for some accessories or mounting setups.
  • This is a 5-slot rail section, so it may be too short for accessories that need more mounting space.
  • Accessory fit and placement will depend on the specific Picatinny item and handguard layout.

Suggested Comparisons

  • Picatinny rail adapter
  • KeyMod accessory mount
  • Low-profile rail section
  • Handguard accessory mounting system

Suggested Accessories

  • Picatinny rail-mounted accessories
  • KeyMod handguard accessories
  • Accessory mounting hardware
  • Compact weapon light mounts

Frequently Asked Questions

What platform does this rail fit?

It fits KeyMod.

How many Picatinny attachment slots does it provide?

The product description says it provides 5 Picatinny attachment slots.

What is the finish or color?

Black.

What material is listed for this rail?

6061 T-6 aluminum construction is listed in the product data.

How much does it weigh?

The listed weight is 0.6 oz.