Adjustable Ergonomic Rifle Grip

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Presentation transcript:

Adjustable Ergonomic Rifle Grip CAPT JT Elder, USN Commanding Officer NSWC Crane Dr. Brett Seidle Technical Director Adjustable Ergonomic Rifle Grip Presented By: Jason M. Davis CRANE-200004

Tale of Two Rifles M16 rifle introduced: 1963 barrel length: 20” fixed stock no built-in mounting surfaces M4A1 Carbine rifle introduced: 1994 barrel length: 14.5” adjustable stock rail system for mounting electro-optics 5.5” 4.25”

Lessons from Operation Desert Storm (1991) Why the M4A1 Carbine? Lessons from Operation Desert Storm (1991) Jungle warfare to urban warfare (Close Quarter Battle) Vehicle ingress/egress Body armor Weight Tradeoff Effective range Unintended consequences

Vietnam-era Shooting Stance elbow up & out wrist straight side forward facing

Current Shooting Stance wrist bent chest forward facing elbow down & tucked

Shooting Stance Look Familiar? New shooting stance more “natural” Coverage of body armor best in front and back Stance better accommodates shorter weapon Weapon transitions made easier

Address the unintended consequence of a bent wrist during firing Why? Need Address the unintended consequence of a bent wrist during firing Why? Poor ergonomics Can lead to vibration-induced musculoskeletal injury Market included military, law enforcement, and gun enthusiasts

The Technology MilTech Prototype

Rearward Most Position Foreward Most Position The Technology (positions every 4) Rearward Most Position MilTech Prototype Foreward Most Position

Competition Advantages Provides two additional grip angles over standard grip Simple two-piece design Disadvantages To adjust angle, requires user to loosen pistol grip screw Creates potential to lose safety selector spring and detent Pistol grip screw responsible for mating two pieces of grip together Wear at interface a concern

If spring or detent is lost, weapon becomes un-operational! Three bad things… Not having a weapon Not having a working weapon Running out of ammunition

Legal Landscape & Next Steps Notice of Allowance received from USPTO on January 20th Looking for an industry partner Obtain user feedback with current prototype Make design changes based on feedback Conduct early user assessment

Technology Transfer (T2)/SIBR Program Manager Contact Information Jason M. Davis Project Principal Investigator NSWC Crane 300 Hwy 361 Code JXNR, B-3422 Crane, IN 47522 (812) 854-6855 jason.m.davis3@navy.mil Brooke Pyne NSWC Crane ORTA Technology Transfer (T2)/SIBR Program Manager NSWC Crane 300 Hwy 361 Crane, IN 47522 (812) 854-4823 elizabeth.b.pyne@navy.mil