CMMG 55AFFB4 Survival Kit Parts Kit AR-15

The CMMG 55AFFB4 Survival Kit is a compact, field-ready assortment of the small parts most likely to be lost, broken, or stripped out during hard use of an AR-15, M16, or M4. Drop it in a range bag, vehicle, or bench drawer and you have what you need to reassemble a stripped lower, replace a broken disconnector spring, or get a rifle cycling again without waiting on a parts order.

Every component meets or exceeds Mil-Spec standards and is built around the standard 5.56x45mm NATO / .223 Rem / 300 Blackout family of AR-platform rifles. CMMG designed the kit specifically to include the parts that physically hold the bolt, trigger group, and upper and lower receivers together, so a single missing pin or spring no longer ends the day at the range.

The Survival Kit contains, per CMMG:

• M16-style cam pin
• Two carrier key screws
• Disconnector
• Disconnector spring
• Ejector

From CMMG, a long-established manufacturer of complete AR-platform rifles, components, and accessories, the Survival Kit is purpose-built insurance for any Mil-Spec AR-15 owner.