Firearm feature which guides a cartridge from the magazine to the chamber
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Rear side of a CZ-75B pistol barrel showing the (here dirty) feed ramp.Locking lug feed ramp on AR-15 barrel nut.
A feed ramp is a basic feature of many breech loading cartridge firearm designs. It is a tightly machined and polished piece of metal which guides a cartridge from the top of the magazine into the firing chamber of the barrel. The feed ramp may be part of the magazine (AR-7), part of the receiver or frame (Mauser C96), part of the barrel (H&K USP) or part of the barrel nut/locking lugs (AR-15). Some firearms, like the FN Five-seven, have a beveled chamber instead of a feed ramp.
The feed ramp is a critical part of semi-automatic firearms and automatic firearms. When the weapon is fired and the spent case is ejected, the feed ramp functions to direct a fresh cartridge from the magazine into firing position; that is, the fresh cartridge slides along the feed ramp into battery. The need for the cartridge to slide both forwards and upwards along the feed ramp and into the barrel is the primary design consideration that makes the ogive the preferred shape for all modern automatic pistol rounds (a hollow point bullet is a truncated ogive), as there are many other shapes that are stable in ballistic flight.
A rough surface or the presence of debris on the feed ramp can knock cartridges off-center, inducing a jam. Polishing a feed ramp is among the tasks commonly performed by gunsmiths.
A feedramp is a basic feature of many breech loading cartridge firearm designs. It is a tightly machined and polished piece of metal which guides a cartridge...
including 20% of users experiencing a double feed, 15% experiencing feeding jams, and 13% saying that feeding problems were caused by magazines. 20% of users...
Allium tricoccum (commonly known as ramp, ramps, ramson, wild leek, wood leek, or wild garlic) is a bulbous perennial flowering plant in the amaryllis...
also be caused by worn recoil springs, buffer springs, or simply a dirty feedramp. Rim lock is where the rim of the shell casing gets caught on the extractor...
and wood Hogue grips. The Elite version of the pistol offers a polished feedramp, polished and deburred slide, beveled magazine well, and enlarged trigger...
preventing the hardened steel tip of the EPR from contacting the aluminum feedramp of the M4 carbine, increasing mean rounds between stoppage by 300%. Standard...
rounds in an extended magazine). It also features improved magazine feed lips, feedramp, extractor, barrel cam geometries, slide serrations, a Tritium "night...
repeating firearms, it can be used to ensure the magazine is feeding ammunition properly up the feedramp and into the chamber.[citation needed] Snap caps are...
It uses the Browning system like the FN GP 35 with an integral barrel feedramp, it is a single-action trigger with slide mounted safety that locks the...
rear end of the magazine, they are fed as a single row into a spiral feedramp and rotated 90 degrees, aligning them with the chamber. The magazine body...
A ramp meter, ramp signal, or metering light is a device, usually a basic traffic light or a two-section signal light (red and green only, no yellow) together...
improvements both involved the magazine, which featured direct feed; that is, there was no feedramp between the magazine and the chamber (a Beretta innovation...
the top round directly behind the barrel's breech end so only a slight feedramp is needed. This allows the barrel to fully support the case. The 6-R rifling...
is beveled to facilitate easier reloading, and the feedramp is polished to insure reliable feeding. Shideler, Dan (2010). 2010 Standard Catalog of Firearms...
angle that the bolt must traverse in order to fire, the weapon has no feedramp, so bullets are pushed by the bolt directly from the magazine into the...
fiber optic front sight were added and improvements were made to the feedramp to improve reliability. Ken Lunde's Shot Show review page Archived 2009-05-30...
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