Heckler & Koch HK437 ‘Sneaker’ Piston-Driven .300 Blackout (.300BLK) Carbine/Short Barreled Rifle (SBR): Better than the HK416 for Covert Ops?

Print Friendly, PDF & Email

By David Crane
david (at) defensereview (dot) com

Images Credit: Heckler & Koch (HK), Concamo, TheFirearmBlog.com (TFL), All4Shooters.com, and Jan-Phillipp Weisswange.

December 6, 2022

DefenseReview (DR) just got reminded of an interesting Heckler & Koch (HK) .300 Blackout (.300BLK, or 7.62x35mm) weapons platform called the HK437 “Sneaker”, courtesy of The Firearm Blog (TFL). Basically, the HK437 is the .300BLK variant of the HK433, which the company bills as “the new compact and modular assault rifle generation”. The HK433’s always struck DR as HK’s take on the FN SCAR weapons platform, with very similar design aspects and aesthetics. Just like the SCAR (and HK416 AR-type carbine/SBR), the HK433/437-type weapons operate via short-stroke gas piston/op-rod (operating rod).

However, unlike the HK416, the HK437’s design allows for a folding stock for an even more compact package when the stock’s folded. In fact, as far as DR can tell, that’s the ONLY advantage the HK 437 enjoys over the HK 416, unless we’re missing something.

Question is, how do the HK433/437 and HK416 compare in terms of ergonomics/ease of use, shooting characteristics, reliability, accuracy, etc. Has any independent group ever done a high-round-count side-by-side comparison? We’d certainly be interested to see it.

Anyway, the HK437 Sneaker .300BLK carbine/SBR (Short Barreled Rifle) looks pretty good in the photos we’ve seen, including the one shown in the TFL piece. That photo shows the HK437 outfitted with a Rheinmetall VarioRay laser light module and an EOTech EXPS of some kind.

Editor’s Note: Defense Review would also like to get DR writer/contributor and chief new-product tester Jeff Gurwitch’s take on the HK437.

Company Contact Info:

HK USA Contacts:

Commercial and Law Enforcement Sales (USA)
HECKLER & KOCH
5675 Transport Boulevard
Columbus, Georgia 31907 USA
Tel: 706-568-1906
Fax: 706-568-9151
Email: [email protected]
Website: http://www.hk-usa.com

Military and Federal Law Enforcement Sales (USA)
HECKLER & KOCH
19980 Highland Vista Drive, Suite 190
Ashburn, Virginia 20147 USA
Tel: 703-450-1900
Fax: 703-450-8160
E-mail: [email protected]
Website: http://www.hk-usa.com

Global Corporate Headquarters & Primary Manufacturing Center
HECKLER & KOCH GmbH
Postfach 1329 D-78722
Oberndorf/Neckar Germany
Tel: +49 (0) 74 23 79 -0
Fax: +49 (0) 74 23 79 -23 50
Global Website: http://www.heckler-koch.com

© Copyright 2022 DefenseReview.com. All rights reserved. This material may not be published, broadcast, rewritten or redistributed without receiving permission and providing proper credit and appropriate links.
Related Articles:

Heckler & Koch (HK) HK433 ‘Compact and Modular’ 5.56mm NATO Assault Rifle/Carbine/SBR: What’s the Point?

Maxim Defense HK416 PDW Conversion/Upgrade with SCW Stock (Buttstock): Turns the HK 416 into a PDX-type Hybrid Weapon System! (Video!)

Maxim Defense PDX 5.5-Inch 5.56mm NATO/7.62mm Russian AR-15-Type Personal Defense Weapon (PDW)/Short Barreled Rifle (SBR) with Hate Brake Muzzle Booster! (Video!)

Kinetic Development Group KDG Tactical Weapons (Rifle/Carbine/SBR) Accessories for the FN SCAR Family of Weapons: Major Modular M-LOK Madness! (Video!)

Handl Defense Modular Aftermarket FN SCAR (MK-16 and MK-17) Weapon Caliber Conversions, Components and Accessories: SR-25 Mag (Magazine)-Compatible; 7.62x39mm Russian AK-47/AKM, 300 Blackout (300BLK) and .260 Remington Caliber Conversions; and Advanced Fore-Rail (AFR)Carbon Fiber M-LOK Tactical Hand Guard/Rail Systems! (Video!)

Heckler & Koch HK437 ‘Sneaker’ Piston-Driven .300 Blackout (.300BLK) Carbine/Short Barreled Rifle (SBR): Better than the HK416 for Covert Ops? by

About David Crane

David Crane started publishing online in 2001. Since that time, governments, military organizations, Special Operators (i.e. professional trigger pullers), agencies, and civilian tactical shooters the world over have come to depend on Defense Review as the authoritative source of news and information on "the latest and greatest" in the field of military defense and tactical technology and hardware, including tactical firearms, ammunition, equipment, gear, and training.

Check Also

SIG SAUER MCX Reduced Signature Assault Rifle (RSAR) Suppressed .300 Blackout (.300BLK) COTS Drop-On PDW-Type Upper Receiver for QUIET Military Special Operations Missions!

B David Crane david (at) defensereview (dot) com January 7, 2023 The Firearm Blog (TFB) …