Heckler & Koch Defense Inc. was awarded a contract worth up to $44.5 million from the U.S. Army for a new compact sniper rifle. The Compact Semi-Automatic Sniper System (CSASS) will provide the service with a small, lightweight, highly accurate weapon, addressing a critical need to replace older and heavier rifles currently in use.

Under terms of the award, HK Defense will produce up to 3,643 rifles. The new HK rifle is a lightweight variant of the 7.62-mm G28 in use by the German Army. The HK CSASS capitalizes on the proven G28 and HK417 designs, meeting the U.S. Army’s requirements for accuracy, reliability, size, and weight. Heckler & Koch will also provide spare parts, support, and training to the U.S. Army.

«This award represents another significant achievement for Heckler & Koch», said Wayne Weber, President of Heckler & Koch USA. «The HK CSASS rifle is a substantial upgrade over the U.S. Army’s current sniper rifles, enhancing accuracy and reliability while providing for a handier, more compact arm. It also confirms Heckler & Koch as a leader in providing small arms to the U.S. military».

According to Daniel Wasserbly, IHS Jane’s Defence Weekly correspondent, the CSASS will more effectively execute a broad spectrum of missions than the current M110. The CSASS will provide the following upgrades: improved reliability, improved accuracy, and improved ergonomics; reduced weight and length; advanced coatings; improved optics; reduced felt recoil; enhanced suppressor performance; enhanced modular rail capabilities; an improved bipod, trigger, pistol grip, and butt-stock.

Technical data
Calibre | 7.62-mm × 51 NATO |
Modes of fire | Semi Auto Only * |
Barrel length **/configuration | 420 mm (16.5“)/Hammer forged, chrome plated |
Twist length | NATO 305 mm/12“ |
Upper receiver | Steel |
Trigger pull | ca. 25-28 N |
Muzzle velocity/energy *** | ca. 780 m/s – 3000 J |
Functional and ballistic compatibility | NATO standard rounds AB22 (FMJ)/AB24 (Tracer)/Selected accuracy rounds with bullet weights up to 12.3 g (190 gr) **** |
Gas regulation for suppressor use | Two stage design (suppressed/unsuppressed) |
Universal interface | STANAG 4694 (NATO Accessory Rail) ***** |
Colour concept | RAL-8000 green-brown |
HK ACCURACY TESTING PROCEDURE AND TECHNICAL TERMS OF DELIVERY | |
Ammunition type | Accuracy Rounds (OTM/HPBT/Sierra Match King) |
No. of rounds | 10 |
Range | 100 m |
Measuring method | Bullet hole centre to bullet hole centre |
Maximum dispersion | < 45 mm (ca. 1.5 MOA) – Guaranteed with every G28 rifle |
SIGHTS & ACCESSORIES – HK RECOMMENDATIONS | |
Telescopic sight up to 800 m | Schmidt & Bender PMII 3-20 × 50/DMR reticle according to international Mildot standard/Full reticle illumination/Laserfilter DIN-EN 207-L4/paralax compensation |
Telescopic sight up to 600 m | Schmidt & Bender PMII 1-8 × 24/DMR reticle according to international Mildot standard/Full reticle illumination/Laserfilter DIN-EN 207-L4/Combined red dot and reticle illumination |
Red dot sight | Aimpoint Micro T1 |
Laser light module | Rheinmetall Soldier Electronics LLM-225 |
Night vision sight | Qioptiq Merlin Long Range |
Thermal sight | L3-Insight CNVD-T3 ****** |
Laser Range Finder | Jenoptik HLR15 |
Height of sight radius | ca. 38 mm |
Transportation case | Peli 1770-010-195E01 NF / CARAMELC010286 |
* No full auto conversion option
** Other barrel lengths in preparation
*** With NATO standard round AB22 – M80
**** No general functional guarantee for non-NATO standardised rounds; HK recommendation: functional and ballistic customer acceptance test with the G28 at ammunition manufacturers
***** Full backward compatibility with MIL-STD-1913 rail
****** Also usable as stand-alone sight