Allows your bolt to function properly, especially when the weapon gets dirty.

The extra-power extractor springs are constructed from ASTM grade A401 silicon wire for reliable, consistent performance, and extended duty cycle.
They are heat treated, stress relieved, and cryogenic processed after windingand are plated with deep penetrating re-Micronized moly-disulfide formulation.

These kits also include mil-spec extractor inserts and mil-spec Viton O-rings.
All the components you need to upgrade your extractor or service it when yours get worn.

Choose between the Extractor Upgrade Kit which has 1 Extra Power Spring, 1 Mil-Spec Extractor Insert and 1 Mil-Spec Viton O-Ring or the the Extractor Upgrade Triple Kit which contains 3 of the Extra Power Springs, Extractor Inserts and Viton O-Rings.

Note: Because this is an Extra Power Spring, use with Stock M16 (Blue) or M4 (Black) Extractor Buffer Inserts (Use of O-Rings or D-Fender® is not required.) We use the Blue Inserts in our LT Uppers.