Quick Guide: Luth-AR Upper Installation — Forward Assist & ejection door (No Sweat) 1042

Join Yamil Sued and master gunsmith Marty Enloe for a clear, step-by-step installation of Luth-AR components on an AR upper. In this video we cover everything you need to swap in a Luth-AR forward assist and install the dust cover (ejection door) safely and correctly — no fluff, just practical tips, common mistakes to avoid, and the tools that make the job faster.

What you’ll learn:
• How to remove the old parts and prepare the upper
• Proper alignment and torque tips for the forward assist
• Correct hinge pin placement and spring orientation for the dust cover
• Quick troubleshooting — common problems and fixes
• Tools and parts list so you’re ready before you start

Tips from Marty:
• Keep springs oriented exactly as shown — wrong side = sticky cover.
• Use a bench block to avoid marring the upper.
• Don’t force pins — back them out, re-align, then press in.

If this helped you, hit Like, Subscribe, and share with a friend building an AR. Questions? Drop them in the comments — we’ll answer.

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