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Recent Patents on Mechanical Engineering
ISSN (Print): 2212-7976
ISSN (Online): 1874-477X
VOLUME: 3
ISSUE: 2
DOI: 10.2174/2212797611003020140









Reducing Rifle Bolt Carrier Bounce

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Author(s): Kevin Russell
Pages 140-144 (5)
Abstract:
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
Affiliation:
Armaments Engineering and Technology Center, US Army Research, Development and Engineering Center, Picatinny, NJ 07806-5000, USA.