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Maxim Defense AR-15 for Sale

Founded: 2013

HQ: United States

Maxim Defense Industries, LLC is a United States manufacturer founded in 2013 by Michael G. Windfeldt. The company is known for ultra-compact AR-platform personal defense weapons and its CQB/SCW PDW stock and pistol brace systems engineered for confined-space performance.

No active auctions for Maxim Defense AR-15.

Recently Sold

Maxim Defense PDX 7.62x39 SBR MDX AR-15 AR15 5.5" PDW & CQB

Sold On 04/03/2026

Maxim Defense PDX 7.62x39 SBR MDX AR-15 AR15 5.5" PDW & CQB

Maxim Defense MDX PDX-505 SCW Collapsing Stock

Maxim Defense MDX 505 300 Blackout AR-15 AR15 5.5" FDE PDW Pistol

Sold On 03/11/2026

Maxim Defense MDX 505 300 Blackout AR-15 AR15 5.5" FDE PDW Pistol

Maxim Defense MDX 505 300-BLK-AAC AR-15 AR15

Maxim Defense MDX 223 Wylde AR-15 AR15 16 Stainless +OPTIC

Sold On 01/05/2026

Maxim Defense MDX 223 Wylde AR-15 AR15 16 Stainless +OPTIC

Maxim MDX 223-Wylde AR-15 AR15 PDW Stock M-LOK

Maxim Defense MDX 300 Blackout AR-15 AR15 5.5" FDE PDW CQB M-LOK Radian

Sold On 12/29/2025

Maxim Defense MDX 300 Blackout AR-15 AR15 5.5" FDE PDW CQB M-LOK Radian

Maxim Defense MDX 300-BLK-AAC AR-15 AR15 Lancer

Maxim Defense MD:15 300 Blackout AR-15 AR15 AR 8.5" MD:15 MD15 +ORIG BOX

Sold On 08/23/2024

Maxim Defense MD:15 300 Blackout AR-15 AR15 AR 8.5" MD:15 MD15 +ORIG BOX

Maxim Defense MD:15 Maxim Defense-MD:15 MD15

NEW Maxim Defense MD-15 PDW 7.62x39 28+1 SBR Maxim MD-15 Defense PDW 3MAGS

Sold On 08/18/2023

NEW Maxim Defense MD-15 PDW 7.62x39 28+1 SBR Maxim MD-15 Defense PDW 3MAGS

Maxim Defense MD-15 PDW

Maxim Defense PDW MDX 300 Blackout 5.5" Bronze AR Pistol Maxim PDW 300 AAC

Sold On 06/12/2023

Maxim Defense PDW MDX 300 Blackout 5.5" Bronze AR Pistol Maxim PDW 300 AAC

Maxim Defense MDX