The Sprinco M4/CAR-15 Intermediate Power Hot White buffer spring and 5-coil extractor spring kit (Sprinco part no. 25209) pairs a red and white Hot White buffer spring with an Extra Power 5-coil bolt carrier extractor spring. Sprinco packs the buffer spring in a hard tube alongside a chrome silicon extractor spring so both wear parts of an AR-15 carbine can be refreshed in one order. The Hot White buffer spring is an intermediate load that sits between the white standard spring and the blue Enhanced Power spring. It is a straightforward reliability refresh for a carbine that has seen a few thousand rounds or a build that needs its recoil system tuned.

Key Specifications

• The buffer spring is Intermediate Power, color coded red and white so it is easy to tell apart from the other loads in the line.
• The buffer spring is moly-plated chrome silicon, a material chosen for durability under repeated compression.
• The extractor spring is a Extra Power 5-coil chrome silicon bolt carrier extractor spring, which holds the extractor against the case rim.
• The buffer spring is made for M4 and CAR-15 carbine buffer systems, so it fits an AR-15 carbine buffer tube.
• The extractor spring fits M4, M4-A, AR-15 and M16 bolt carriers, the common pattern across AR-15 rifles and carbines.
• The buffer spring ships in a hard tube, which protects the coils in transit and on the shelf.

Frequently Asked Questions

What is in this kit? One Intermediate Power Hot White moly-plated chrome silicon carbine buffer spring, color coded red and white and supplied in a hard tube, and one Extra Power 5-coil chrome silicon bolt carrier extractor spring.

Where does the Hot White spring sit in the line? It is an intermediate power spring, heavier than the white standard spring and lighter than the blue Enhanced Power spring.

Does the 5-coil extractor spring need a D-Fender ring? No. Sprinco says the 5-coil spring carries a heavier load than OEM springs, which removes the need for a D-Fender ring, and does not recommend D-Fender rings with it.

Buy the Sprinco M4/CAR-15 Intermediate Power Hot White Buffer Spring and 5-Coil Extractor Spring Kit

Two springs, one order, and a carbine that cycles the way it did when it was new. Sprinco builds these for AR-15 shooters who would rather replace springs on a schedule than chase a stoppage. Browse more rifle parts and order from our Lubbock, Texas gun shop for fast shipping.