History of the SIG-Sauer MPX Copperhead
The SIG MPX "Copperhead" is a unique, ultra-compact, AR-style Pistol Carbine (PCC) carbine manufactured by SIG-Sauer as part of the MPX line of firearms. The gun is purposely designed to be lightweight and compact for easy portability and deployment - with remarkable qualities for detail security, home defense, competitive shooting and general hand-to-hand combat (CQB).
Copperhead products represent the latest in the MPX lineup, which includes the long-standing "MPX PCC" and "MPX K".
The frame of the weapon occupies almost the entire length of the compact weapon and houses all relevant internal working parts. Its arrangement remains traditional, with the pistol grip/trigger unit located on the lower rear end of the weapon. There is a two-position safety lever near the ergonomic handle, and the magazine well is located in front of the trigger. Above the frame is a section of an M1913 rail for mounting a variety of tactical accessories, including laser sights and magnifiers. The PCB (Pivot Post) mounts can be folded through channels embedded in the top side of the frame.
Only the muzzle protrudes from the front of the frame, and there are no handguards to keep the overall length of the gun as short as possible. The receiver is divided into lower and upper halves, allowing free access to the interior when the weapon is detached.
The charging handle is an AR-style "pull-back" type, located at the rear of the upper receiver.
There are currently (2022) several copper head variants on the market, each variant is fitted with a 9mm luger and is based on a gas piston/semi-automatic operating system, but in terms of overall weight, barrel length (3.5" or 4.5 inches). 5"), trigger type, magazine number (10 or 20 rounds) and receiver design.
Specification
Fundamentals
Years of Service
2022
Origins
United States
Categories
Pistol Carbine (PCC) / Personal Defense Weapon (PDW)
Manufacturer
SIG-Sauer - USA
Operators
United States
Roles
Auto function
Has mechanical features to automate the firing process.
Special Forces
The quality of this weapon has proven its value to Special Forces who need a versatile and reliable solution to the rigors of special operations.
Special weapons for specific characters on the battlefield.
Distinctive features
Compact nature
The compact nature allows for relatively easy confusion.
Portable
Despite its size/weight, the product can be transported on foot.
Semi-automatic fire
Internal action allows triggering a single bullet per trigger, triggering a semi-automatic loading mechanism for continuous fire.
Repeated Shots
The system has built-in automatic or pseudo-automatic function, which can achieve repeated triggering.
Ability to use rifle scopes/visual aids
Support for mounting optics (scopes) to improve accuracy in long-range shooting.
Customizable
Design allows users to customize certain components for customization.
Adaptable
Design provides attachment points for external aftermarket hardware including laser sights, flashlights, scopes and grips.
Dimensions and Weight
Overall Length
368mm
14.49 inches
Barrel length
89mm
3.50 inches
Cured weight
4. 41 lbs
2.00 kg
Attractions
Supported receiver optics, sights and magnifiers.
Action
Gas powered; gas piston; semi-automatic only.
Semi-automatic
One shot per trigger; self-loading or self-loading action supported by internal mechanisms; stroke management (and initial cocking) typically required by operators; subsequent shots assisted by unlocking/moving bolts.
Gas Power
proposes a pneumatic system that typically consists of a cylinder and a rear drive piston that directs power to the bolt assembly.
CARTRIDGE & FEED
Caliber(s)*
9mm Luger
Rounds / Feed
10- or 20-round detachable box magazine (model dependent).
VARIANTS
MPX Copperhead - Base Series Name. PMPX-3B-CH-CO - 3. 5" barrel; 14. 5" overall length; single-stage polished / hard-coat trigger; Cerakote receiver finish. PMPX-3B-CH - 3. 5" barrel; 14,5" overall length; single-stage polished / hard-coat trigger; Cerakote receiver finish. PMPX-4B-CH - 4. 5" barrel; 15.
5" overall length; TIMNEY single-stage trigger; Black Anodized receiver finish.

