Recent Patents on Mechanical Engineering

Khurshid Zaman  
Bentham Science Publishers


Reducing Rifle Bolt Carrier Bounce

Author(s): Kevin Russell

Affiliation: Armaments Engineering and Technology Center, US Army Research, Development and Engineering Center, Picatinny, NJ 07806-5000, USA.


This work presents a recently-patented mechanical buffer design to reduce bolt carrier bounce in the M4 and M16 rifles. The buffer includes a main outer spring to store the energy in a rearward-traveling bolt carrier and a nested spring coupled to a mass to counter the rebound or “bounce” resulting in the impact of a forward-traveling bolt carrier. A dynamic model of the mechanical buffer is included to demonstrate bolt bounce and the mechanical buffer concept.

Keywords: Mechanical buffer, bolt bounce, spring-mass system, M4 carbine, M16 rifle

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Article Details

Page: [140 - 144]
Pages: 5
DOI: 10.2174/2212797611003020140
Price: $100