Samson B.R.E. MP5K End Cap Folding Bufferless Receiver Extension Ambidextrous Black

Samson B.R.E. MP5K End Cap Folding Bufferless Receiver Extension Ambidextrous Black - Buffer Tube Assembly for AR-15 - view 1
Buy Now

Samson

Overview

The Samson B.R.E. MP5K End Cap Folding Bufferless Receiver Extension is designed to provide a compact and versatile solution for your firearm build. Its ambidextrous design allows for easy operation regardless of the shooter's preference, making it an excellent choice for those looking to enhance maneuverability in tight spaces. This end cap is often seen in builds where space-saving and lightweight configurations are prioritized, particularly in compact setups.

Specifications

MPN040616401
ColorBlack

Available Merchants(1)

Prices checked

Price Alert

Get an email if the price drops 10% or more.
Optics Planet logo
Optics Planet
Free shipping
Shipping Speed
In Stock
$269.37

Build history on GunPartPicker

Builders have added the Samson B.R.E. MP5K End Cap Folding Bufferless Receiver Extension Ambidextrous Black to their builds on GunPartPicker. Since April 2026, it ranks #87 of the 212 buffer tube kits builders have added.

Availability is good: it was in stock at one retailer or another nearly every time we checked in October 2026, and today the one retailer we track has it in stock. Prices barely moved in October 2026, holding around $269.37, with no real sale all month. Buying today, the lowest price is $269.37 at Optics Planet, which matches the best price we saw in October.

Trending buffer tube kits →

Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers

Not sure which buffer tube assembly to pick?

We ranked every buffer tube assembly by how often it shows up in real builds on GunPartPicker.

Read the guide: AR-15 Buffer Tube Assembly Guide →

Frequently Built With

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

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Platform

92.5%
AR-1592.5%
AR-104.5%
AR-93%

Caliber

72.7%
5.56 NATO72.7%
.223 Wylde9.4%
300 Blackout7%
.308 Win3.2%
9mm2.6%
Other5.2%

Gas System

53.1%
Mid-Length53.1%
Carbine26.1%
Rifle9.9%
Pistol9%
Blowback1.4%
Other0.6%

Builds Featuring This Part

See all builds →

Builds in the community that include the Samson B.R.E. MP5K End Cap Folding Bufferless Receiver Extension Ambidextrous Black

BuildPartsTotal
LMT 26" 5.56 build
LMT 26" 5.56
37$18813.84

Review this product

Share your thoughts with other customers

Be the first to review

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