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Recent Patents on Mechanical Engineering

Editor-in-Chief

ISSN (Print): 2212-7976
ISSN (Online): 1874-477X

Reducing Rifle Bolt Carrier Bounce

Author(s): Kevin Russell

Volume 3 , Issue 2 , 2010

Page: [140 - 144] Pages: 5

DOI: 10.2174/2212797611003020140

Price: $65

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


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