Maxim Defense PDX
Maxim Defense Industries · Personal Defense Weapon · In Production · 2018
Overview
The Maxim Defense PDX is an ultra-compact personal defense weapon built on the AR-15 platform around the company's patented SCW (Self-Contained Wire) brace and buffer system, which eliminates the conventional receiver extension to slash overall length. Chambered in .300 Blackout, 5.56 NATO, or 7.62x39, it pairs a 5.5-inch barrel with the integrated HATEBRAKE muzzle booster to reduce flash, recoil and gas blowback in the short-barrel envelope. Marketed for Tier 1 close-quarters applications, it uses 6Al-4V titanium, 17-4 stainless steel and 7075/6061 aluminum and is built to order in the USA.
Specifications
| Weight (empty) | 2580 g (91.0 oz) |
| Overall Length | 476.2 mm (18.75") |
| Barrel Length | 139.7 mm (5.50") |
| Action Type | Gas Operated Direct Impingement |
| Firing Mechanism | Rotating Bolt |
| Trigger Type | Single Stage |
| Magazine Capacity | 30 rounds |
| Magazine Type | Detachable Box |
| Muzzle Velocity | 625 m/s (2051 fps) |
| Muzzle Energy | 1585 J (1169 ft·lbf) |
| Effective Range | 200 m (219 yd) |
| Barrel Rifling | Right Hand |
| Frame Material | Aluminum |
| Barrel Material | Steel |
| Stock Material | Polymer |
| Finish | Hardcoat Anodized |
Calibers
- .300 AAC Blackout · primary — also known as 300 BLK, 7.62x35mm
- 5.56x45mm NATO · SS109/M855 — also known as 5.56 NATO, .223 Rem
- 7.62x39mm — also known as 7.62 Soviet, 7.62x39
Features
- Firing modes: Semi Automatic
- Feed systems: Stanag Detachable Box Magazine
- Safety mechanisms: Manual Thumb Safety
- Features: Scw Self Contained Wire Pistol Brace, Hatebrake Muzzle Booster, Hk Height Rail, M Slot Handguard, Ambidextrous Controls, Free Floating Barrel, Ar15 Magazine Compatible, Titanium Components, 2 Moa Accuracy
Variants
- PDX SBR — Nfa Sbr
- PDX 5.56 NATO — Caliber 5 56
- PDX 7.62x39 — Caliber 7 62x39
Production
Production years: 2018-present
Origin
Country of origin: United States
Notes
MSRP $2,495. Built to order, 4-6 week lead time. The SCW system is Maxim Defense's signature innovation, collapsing the buffer assembly into the brace housing for a much shorter overall length than a standard AR pistol. Thread pitch 1/2x28 (5.56) or 5/8x24 (.300 BLK, 7.62x39).
Background
Maxim Defense first turned heads at SHOT Show with the PDX, a sub-19-inch AR pistol that delivered intermediate-cartridge ballistics from a package barely longer than a submachine gun, thanks to its receiver-extension-eliminating SCW brace.