JP Adjustable Gas System

A2/M4 sight
.750" bore
Black Stainless

A2/M4 front sight assembly replaces existing pin-on assemblies and provides a gas adjustment. May also be used as front sight only to extend the sight radius of any existing carbine or rifle. Material: 416 stainless Finish: Black oxide Weight: 3.9oz Length: 1.870" Height: 3.400"(overall), 2.600"(over bore) Width: .860" Attachment: 10-32x1/2" socket head screws, 5/32 hex drive (includes 5/64x5/16 roll pin for gas tube installation) Adjustment: 8-32x1/4" stainless set screw, 5/64 hex drive (hex key included)

Our Adjustable Gas System is an integral part of our “recoil management” system. Most rifles are over-gassed and the resulting bolt slamming effect is a very significant part of the felt recoil impulse, which impedes sight recovery. We found that controlling the bolt velocity made for a much smoother shooting rifle. This easy-to-install gas manifold allows you to tune your bolt velocity to a particular load and optimize the feel of your rifle. If you enlarge the gas port, it is possible to tune up or down in case you want to use reduced loads or in the case of some very short-barreled M15 versions, which are somewhat ammunition sensitive. You may also shut the system off if you don’t want to chase brass or give a hot brass shower to your neighbor on the firing line at the range.

$119.95

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