Sprinco USA AR-15 4-Coil Extractor Spring Upgrade Kit (3-Pack)

Price: $14.25

Your AR’s extractor spring is its most critical wear item. The factory spring weakens, and then you get failures to extract. It’s not a matter of if, but when. This Sprinco 3-pack is the cheapest, most effective reliability insurance you can buy.

This isn’t just a spare parts kit. Sprinco’s enhanced 4-coil spring is built to hold its tension. It delivers the consistent power of a new mil-spec spring for thousands of rounds longer. If you run a rifle-length gas system (18″+ barrel), shoot suppressed, or reload your brass, this spring is mandatory. It maintains bolt timing and protects your brass from chewed-up rims.

Sprinco doesn’t cut corners. The spring is made from Chrome Silicon wire, heat-treated, stress-relieved, and cryo-treated for stability. It’s then impregnated with molybdenum disulfide—a dry lubricant that works when wet, dry, or filthy. This is a permanent upgrade, not a band-aid.

Each kit includes three complete sets: the enhanced 4-coil spring, a mil-spec black extractor insert, and a Viton O-ring. Viton handles heat and solvents far better than standard rubber. Keep one set in your rifle, and the other two in your grip or range bag. For under fifteen bucks, you solve the most common AR malfunction.

What’s in the Box:

• 3x Sprinco Enhanced Power 4-Coil Extractor Springs
• 3x Mil-Spec Black Extractor Inserts
• 3x Mil-Spec Viton O-Rings

Key Specs & Details:

Installation Note: This is a direct drop-in replacement for your factory extractor components. No gunsmithing required. A 3/32″ punch and a few minutes are all you need.