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Midwest Industries Alpha
California Proposition 65 Warning

This product can expose you to chemicals including lead, known to cause cancer and birth defects. For more info visit P65Warnings.ca.gov.

Midwest Industries

Alpha

$174.95
$164.95
Sale Price
Available California compliant

Midwest Industries Alpha M4 Beam Side Folder, Compatible with Mil Spec AR15 Stocks, Fits AK47 and Other Firearms that Include a 1913 Stock Adapter, Anodized Finish, Black MI-ALPHA-M4BSF

Key Details
Brand Midwest Industries
Manufacturer Part Number MI-ALPHA-M4BSF
UPC 812102034278
SKU MWMI-ALPHA-M4BSF
Current Stock 38 available
Quantity Updated Jun 12, 2026 2:42 AM
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Purchase Requirements
  • Final availability is confirmed at checkout.
In-Store Pickup Required: All firearm purchases must be picked up at our Beverly Hills location after background check completion.
Product Description

Midwest Industries is proud to announce the Alpha Series M4 Beam. This easily installed stock adapter allows the end user the ability to add whichever milspec stock they would like to their side folding beam design. This is achieved by connection to a 1913 interface.

Features
  • Heavy-duty side-folding mechanism constructed from 4140 steel
  • Full-length locking lug for maximum strength
  • Solid positive lock up in both positions
  • Steel clamp with large surface engagement
  • Can be configured to right or left folding
  • Modular design can accommodate different stock attachments
  • 2 QD Sling attachments
  • Compatible with Mil-Spec diameter stocks
Specifications
UPC: 812102034278
Manufacturer: Midwest Industries
Manufacturer Part #: MI-ALPHA-M4BSF
Model: Alpha
Finish: Anodized
Type: Stock