The CMMG Mk3 Carbine Action Spring (brand part no. 38CA98E) is a direct-fit replacement spring built for the carbine buffer system on CMMG Mk3 platform rifles. Whether you’re replacing a worn spring during routine maintenance or building out a spare parts kit, this action spring keeps the buffer system cycling the way CMMG designed it to.

Key Specifications

• Purpose-built for the carbine buffer system on CMMG Mk3 platform rifles.
• Direct-fit replacement spring for routine maintenance or spare parts stock.
• Lightweight component that ships at just 0.11 lb.

Frequently Asked Questions

What platform is this spring designed for? It’s built specifically for the carbine buffer system on CMMG Mk3 platform rifles.

Is this a direct-fit replacement part? Yes, it’s a direct-fit action spring for the Mk3 carbine buffer system.

Buy the CMMG Mk3 Carbine Action Spring

Keep your Mk3 buffer system cycling reliably with this spring from CMMG. Browse more AR buffer system parts and order from our Lubbock, Texas gun shop for fast, insured shipping.