Heckler & Koch MR762-A4 13" SBR - PAI Law Enforcement Sales

Heckler & Koch MR762-A4 13″ SBR

Authorized Distributor for Heckler & Koch Government Sales. PAI Defense is a premier holder of state and federal contracts, specializing in the deployment of top-tier tactical systems for military, law enforcement, and corporate security clients. The Heckler & Koch MR762-A4 13″ SBR is a heavy-caliber, compact tactical platform. It combines the overmatching stopping power and barrier penetration of the 7.62x51mm cartridge with a highly maneuverable 13-inch barrel, making it the ideal solution for vehicle-borne operations and heavy CQB environments.

Procurement Strategy: This NFA-regulated Short Barreled Rifle is restricted to professional agency acquisition. Please reach out to us to ask for a quote or submit a request for proposal (RFP).
Authorized HK Parts Provider: As an official distributor for Heckler & Koch, PAI Defense supplies the complete ecosystem of HK parts, armorers’ tools, and maintenance kits. Visit our HK Parts and Supplies category for dedicated lifecycle support and OEM replacement components.

Description

Manufacturer	Heckler & Koch
Caliber	7.62x51mm NATO (.308 Win)
Primary Role	Heavy CQB / Vehicle Operations / Compact DMR
Operating System	Short-Stroke Gas Piston
Barrel	13″ Cold Hammer Forged (CHF), Heavy Contour
Controls	Fully Ambidextrous (A4 Configuration)
Handguard	Free-Floating M-LOK System
Classification	SBR (Short Barreled Rifle) – NFA Rules Apply

Heavy-Caliber Superiority in a Compact Footprint

The HK MR762-A4 13″ SBR represents the ultimate fusion of battle rifle ballistics and submachine gun maneuverability. The “A4” generation modernizes this proven platform with fully ambidextrous controls and enhanced modularity, tailoring it to the rigorous demands of modern entry teams and specialized tactical units. As an authorized government provider, PAI Defense ensures that these mission-critical, NFA-regulated systems are delivered with the highest level of compliance, auditing, and administrative precision required for state and federal procurement.

Advanced Technical Architecture

Short-Stroke Gas Piston System: Operates on HK’s legendary piston mechanism, which prevents hot carbon and combustion gases from entering the receiver. This ensures the weapon runs exceptionally clean and cool, maximizing reliability even under high firing cadences or when deployed with a suppressor.
A4 Ambidextrous Upgrades: The latest A4 configuration introduces fully ambidextrous operating controls, including the bolt catch/release, magazine release, and safety selector, allowing seamless manipulation from either shoulder in confined operational spaces.
Compact Precision Barrel: Equipped with a 13-inch cold hammer-forged barrel that provides exceptional thermal stability and accuracy, ensuring the platform performs consistently during sustained engagements while remaining maneuverable indoors.
Modern Interface: Features a free-floating M-LOK compatible handguard, providing a rigid, low-profile mounting surface for advanced optics, laser aiming modules, and tactical illumination systems.

PAI Defense: Your Authorized HK Procurement Partner

Navigating government acquisitions for NFA-regulated items requires a strategic B2B approach. PAI Defense provides the corporate verbiage, audited technical specifications, and streamlined RFP processes necessary to support procurement officers. Beyond initial acquisition, our status as an authorized HK distributor guarantees long-term sustainability through direct access to OEM replacement parts, magazines, and technical support, ensuring your agency’s fleet remains mission-ready.