Fab Defense

Open Box Dealer Demo FAB Defense M4 Folding Buttstock for MP5 Black FX-M4MP5

Fab Defense Open Box Dealer Demo FAB Defense M4 Folding Buttstock for MP5 Black FX-M4MP5 - Stock & Brace for AR-15 - view 1
Buy Now

Fab Defense

Overview

The Fab Defense Open Box Dealer Demo FAB Defense M4 Folding Buttstock for MP5 Black FX-M4MP5 is a stock & brace. Compare prices from multiple merchants and find the best deal.

Specifications

MPNFXM4MP5
ColorBlack
MaterialPolymer
Stock TypeFolding

Available Merchants(1)

Stock Alert

Get an email when this is back in stock.
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
Out of Stock
$204.10
Buy Now

Build history on GunPartPicker

Builders have added the Fab Defense Open Box Dealer Demo FAB Defense M4 Folding Buttstock for MP5 Black FX-M4MP5 to their builds on GunPartPicker. Since April 2026, it ranks #102 of the 560 stocks and braces builders have added.

Trending stocks and braces →

Updated · from real builds on GunPartPicker

Not sure which stock & brace to pick?

We ranked every stock & brace by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Stock Popularity Report →

Check it against the live catalog:

Frequently Built With

The part most often added in each category by the builds that include this one

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

Sharps Bros Showdown Stripped Lower Receiver - Black, Unique Design and High-Performance for Custom AR Builds - SBLR11

Lower Receiver$285in 22% of them
Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP

Trigger$159in 22% of them
Geissele Automatics AR-15/M16 Super Charging Handle, Ddc

Geissele Automatics AR-15/M16 Super Charging Handle, Ddc

Charging Handle$104in 22% of them
Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel w/ 15" ATLAS R-ONE M-LOK Handguard - FDE

Aero Precision M4E1 Threaded Complete Upper, 16" 5.56 Mid-Length Barrel w/ 15" ATLAS R-ONE M-LOK Handguard - FDE

Upper Receiver$594 · out of stockin 11% of them
Strike Industries Cobra Billet Aluminum Trigger Guard - Red

Strike Industries Cobra Billet Aluminum Trigger Guard - Red

Trigger Guard$30in 44% of them
Strike Industries AR-15 Ambidextrous Safety Selector Switch - Red

Strike Industries AR-15 Ambidextrous Safety Selector Switch - Red

Safety$63in 44% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

90.6%
AR-1590.6%
AR-106.2%
AR-93.2%

Caliber

70.6%
5.56 NATO70.6%
300 Blackout8.6%
.223 Wylde8.4%
.308 Win5.2%
9mm2.3%
Other5%

Gas System

52.1%
Mid-Length52.1%
Carbine26.3%
Rifle10.3%
Pistol9.9%
Blowback1%
Other0.3%

Builds Featuring This Part

See all builds →

Builds in the community that include the Open Box Dealer Demo FAB Defense M4 Folding Buttstock for MP5 Black FX-M4MP5

BuildPartsTotal
LMT 8.2" 300 Blackout build
LMT 8.2" 300 Blackout		14$3577.19

Review this product

Share your thoughts with other customers

Be the first to review

No reviews yet. Be the first to review this product!