KNS Precision AR/MCX Stock Adapter Kit with Flange

The KNS Precision AR/MCX Stock Adapter replaces a standard AR-style buffer tube with a flexible M1913 Picatinny rail. This flanged version retains the takedown pin detent and spring for use on AR-15 lower receivers. It's a simple, lightweight upgrade for shooters running an MCX-pattern or similar upper that needs a Picatinny stock interface.

Note: Not compatible with standard direct impingement AR-pattern rifles or rifles that require the buffer tube to contain the recoil system.

Features:

• Compatible with AR-pattern lower receivers
• Flanged model retains the takedown pin detent and spring
• Replaces the buffer tube with a Picatinny-style stock mount
• Low parts count for simplicity and strength

The adapter's low parts count keeps installation straightforward and reduces potential failure points compared to a more complex folding mechanism. Because it swaps in for the buffer tube entirely, it's built specifically for uppers that don't rely on the tube to house the recoil system, giving you a clean Picatinny interface for mounting a stock or brace.

KNS Precision Inc. is a Texas-based machine shop manufacturing parts for the AR-15/M16 and AK47/74 platforms, perhaps best known for its anti-rotational hammer and trigger pins.