Description

ZEUS ARMS PROTEUS PSTL 5.56/300BLK BLACK BRACE

Our PROTEUS Series is our most popular pistol offering. This firearm is meant to be the ultimate compact survival gun. The Proteus features a QD removable Barrel system and foldable brace assemble allowing you to transport in a backpack or pistol case. Due to the unique QD Barrel removal system you can also transition between compatible calibers in seconds. 
Lower Receiver: The Proteus pistol is currently made on our GHOST lowers which we spend the extra time to engrave the serial number on the bottom side of the lower to leave a sleek clean blank finish on the sides to customize to your liking. 
Enhanced Flared Magazine Well
Type III Hard Coat Anodized
7075-T6 aluminum
Precision CNC Machine broached magazine well
Accepts all mil-spec components
 
Lower parts Kit: Our lower parts kits contain all high quality, 100% USA produced components, manufactured to our exacting standards. We don’t use foreign made parts, polymer parts, or MIM parts.
 
Buffer Tube Kit/Side Folding: AR15 / M16 Buffer Tube Kit – Standard Carbine with Side Folding Attachment
• Mil-Spec dimension 7075-T6 6 position buffer tube – hard coat anodized
• Carbine buffer
• Castle nut – phosphate coated
• Endplate – mil-spec phosphate coated
• Buffer spring – Coated Music Wire
 
Brace: SB Tactical SBA3 Brace (Black)
Lancer Magazine: Best of both worlds. A Polymer body that doesnt dent like metal and metal feed lips that can handle the wear and tear years down the road. L5 Advanced Warfighter 30 Rounds- Black
• Hardened Steel Feed Lips
• Non-Tilt Follower
• Stainless Steel Spring
• Aggressive Texturing
Upper Receiver:
• 7075-T6 aluminum
• Machined from quality forgings
• No T-Marks
• Hard coat anodized
• Fits any mil-spec style AR15 / M16 lower receiver
 
Cry Havoc Barrel QD Attachment allowes for barrel assembilies to be quickly removed for compact storage and to allow for quick barrel swaps between compatible calibers 
 
Barrel: Our barrels are produced from raw bar stock to finished product at a single state of the art facility. We drill, ream, rifle, contour, and assemble, using the lastest in robot automation technolgy. All of our barrels are properly stress relieved after rifling, and extensions are torqued after nitride.  Our quality control system ensures that all barrels are dimensionally correct and bores fall well within their individual tolerance.  
7.5″ length
5.56 NATO Chamber
Pistol gas system
.750″ gas block journal
1:7 RH twist
4150 CMV
Stress relieved after rifling
Black Nitride finish
M4 extension
100% USA Made
8″length
300Blackout Chamber
Pistol gas system
.750″ gas block journal
1:7 RH twist
4150 CMV
Stress relieved after rifling
Black Nitride finish
M4 extension
100% USA Made
 
Muzzle Device: Equipped with flash can which is perfect for those applications that do not need recoil or flash reduction, but still need to focus muzzle blast and flash down range. Our flash cans are slim enough to fit under most handguards for that classic “SD” look. Because there is no direct impact on the muzzle device, the lightweight aluminum is not damaged during firing.
Machined from 7075-T6 aluminum
Hard coat anodized
Threaded 1/2-28
Outside diameter: 1.20″
Length: 1.75″
Weight: 1.7 ounces
100% American Made
Handguard:
• Machined from 6061-T6 aluminum
• Hard coat anodized per milspec
• 6061-T6 lightweight barrel nut
• Top rail length: 7-9inches
• MLOK mounting points at 3:00, 6:00, and 9:00
 
Gas System: Our Gas Block and our gas tube get nitride coated for better resistance against carbon build up than your standard stainless gas tubes.
Machined from 4140 pre-hardened steel
Black Nitride coated
Closed end gas tube hole
100% USA Made
 
Ambi Charging Handle:
• Body Manufactured to milspec dimensions
• Fits all standard AR15 / M16 style firearms
• Machined from a 7075-T6 forging for extra strength
• Hard coat anodized – black
 
Bolt Carrier Group:
8620 M16 style carrier
Black Nitride finish
Properly heat treated
Final grind before plating
Carpenter 158 5.56/.223 bolt
Heat treated
Shot peened
Precision ground for perfect dimensions
Black Nitride finish
MPI
4140 billet gas key
Black Nitride Finish
Properly seated with Grade 8 fasteners
Properly staked to ensure reliability
4140 Cam Pin nitride treated for wear resistance
Billet Machined Extractor
Machined from solid 4140 bar stock, heat treated and shot peened
Phosphate coated for reliable extraction
Extractor insert included
O-Ring included
Firing pin precision machined from 17-4 H-900 Stainless Steel
100% USA Made
All Zeus Firearms ship with a hard case for easy transportation