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Proprietary Defense R&D & Professional Weapon Systems

BrashZero

A Caseless Firearm Operating System Utilizing Standard
NATO-Spec Ammunition Components, with Multi-Caliber Adaptability

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Upper Receiver Kits: Mongoose and 1.36

Proprietary Defense R&D & Professional Weapon Systems

We are an advanced research, design, and troubleshooting house for the defense contracting industry. We solve problems that others cannot. From a philosophical perspective, rather than an economic one, we have decided to make available limited edition, short run, small batch, conceptual designs. 


Our projects are each designed as a no-compromise article--specifically designed to appeal to precise desires and tastes.


We are not a traditional firearms manufacturer. We leverage a vertically integrated, decentralized manufacturing pipeline. We first formulate every aspect of the production process, from designing proprietary fixtures, to speeds, feeds, and specialized tool paths and tooling. We then leverage a hand-selected network of high-quality manufacturing contacts to rapidly transform initial concepts into functional prototypes and seamlessly scale to high-volume mass production.

Make a Special Request or Custom Order
Make a Special Request
Learn About Our Manufacturing Process
Learn About Our Manufacturing Process

We are an advanced research, design, and troubleshooting house for the defense contracting industry. We solve problems that others cannot. From a philosophical perspective, rather than an economic one, we have decided to make available limited edition, short run, small batch, conceptual designs. 


Our projects are each designed as a no-compromise article--specifically designed to appeal to precise desires and tastes.


We are not a traditional firearms manufacturer. We leverage a vertically integrated, decentralized manufacturing pipeline. We first formulate every aspect of the production process, from designing proprietary fixtures, to speeds, feeds, and specialized tool paths and tooling. We then leverage a hand-selected network of high-quality manufacturing contacts to rapidly transform initial concepts into functional prototypes and seamlessly scale to high-volume mass production.

Make a Special Request or Custom Order
Make a Special Request
Learn About Our Manufacturing Process
Learn About Our Manufacturing Process

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Upper Receiver Kits: Mongoose and 1.36

 Integrated Fully Retractable Brace (NO Buffer Tube)

■ Long Stroke AK-style Operating System

■ Interchangeable Barrels (different lengths, .300, 5.56)

■ Modular Piston Rod

■ Uses Standard AR15 Lower Receiver, AR15 Barrels, Bolt, cotter pin, and firing pin

■ Lightest, Slimmest and Shortest on the Market; Configurations Under 15” long; 2.418 lbs upper incl. brace; 4.25 lbs completed assembly

■ Elimination of Carrier Tilt with (1) dual carrier paths for piston and BCG, and (2) attaching the piston rigidly to the rear of the BCG 

Auto Bolts Available by Contract

Every part is CNC machined from solid billet. No extrusions. No castings.
Lifetime Guarantee
 Made in USA 

Blecher LLC Mongoose 10.5" Barrel
Blecher LLC 1.36 7.5" Barrel

Mongoose: Upper Receiver kit
Batch Size: 350 Units Total

Chassis Width: only 1.54” from rail to rail

Overall Length: 17.48" w/ 7.5" Barrel + Standard A2 Flash Hider; 21.13"w/ 10.5" Barrel

Non-Reciprocating Left Side Charging Handle

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      

1.36: Upper Receiver kit
Batch Size: 350 Units Total

Chassis Width: only 1.36" rail to rail

Overall Length: 14.9” w/ 5.5” Barrel + Proprietary Flash Hider in Contract Quantities

16.7” w/ 7.5” Barrel + Standard A2 Flash Hider

Reciprocating Right Side Charging Handle

Weight: 2.418 lbs upper incl. brace; 4.25 lbs completed assembly w/ standard lower; 1.44 lbs proprietary parts assembly w/o barrel or bolt

 $3020

(requires lower receiver to complete)


Free shipping. No credit card fees.

Add to Cart

$2500

(requires lower receiver to complete)  

Free shipping. No credit card fees.

Add to Cart
Blecher LLC Mongoose 10.5" Barrel

Mongoose: Upper Receiver kit
Batch Size: 350 Units Total

■ Chassis Width: only 1.54” from rail to rail

■ Overall Length: 17.48" w/ 7.5" Barrel + Standard A2 Flash Hider; 21.13"w/ 10.5" Barrel

■ Non-Reciprocating Left Side Charging Handle

 $3020 
Free shipping. No credit card fees.

Add to Cart
Blecher LLC 1.36 7.5" Barrel

1.36: Upper Receiver kit
Batch Size: 350 Units Total

■ Chassis Width: only 1.36" rail to rail

■ Overall Length: 14.9” w/ 5.5” Barrel + Proprietary Flash Hider in Contract Quantities

16.7” w/ 7.5” Barrel + Standard A2 Flash Hider

■ Reciprocating Right Side Charging Handle
■ Weight: 2.418 lbs upper incl. brace; 4.25 lbs completed assembly w/ standard lower; 1.44 lbs proprietary parts assembly w/o barrel or bolt

$2500 
Free shipping. No credit card fees.                                                                                                            

Add to Cart

Learn More About Mongoose & 1.36

Read More

See also Versions for jurisdictions that don't allow Flash Hiders or Retractable Braces

See Brace Versions


Mongoose: Gallery

1.36: Gallery

Mongoose: Gallery

1.36: Gallery

BlecherLLC Uppper Receiver Kits, Extended, Retracted, and railsystem
BlecherLLC Upper Receiver Kits Comparison


BlecherLLC Mongoose vs 1.36 to scale comparison
Blecher LLC Schematic Drawing

Special Requests & Custom Orders

Design Service: We have a highly skilled design team that can take your idea from concept to finished product, through to Patent Pending. All IP done by big firm Wall Street lawyers. We can handle every stage, helping you turn your vision into a tangible, protected asset. 


Manufacturing Service: We are capable of moving your design to unlimited mass production, whether it be 100 units or 100,000 units. 

411 Walnut St, 19810

Green Cove Springs
FL, 32043

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Special Requests & Custom Orders

411 Walnut St, 19810

Green Cove Springs
FL, 32043


Join the Mailing List

Email: contact@blecherllc.com


Phone: +1 561-262-1948


411 Walnut St, 19810

Green Cove Springs
FL, 32043




Evolution of Prototypes

Collection of Former Prototypes. Some in anodized form, some non-anodized (bare metal), and some 3D printed. 

Includes Patent Pending Upcoming Projects

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