Armaspec ARM6511-FDE QD End Plate – FDE Aluminum AR-15/AR-10

Description

Every AR build eventually runs into two little annoyances: finding a clean spot to mount a sling, and wrestling that tiny takedown pin detent and spring into place without launching it across the garage. Armaspec designed this end plate to knock out both problems in one shot. It bolts on in place of your factory end plate at the rear of the receiver extension and adds a low-profile QD socket, so you get a dedicated, ambidextrous sling attachment point that works with any standard push-button QD swivel.

What Makes the ARM6511-FDE End Plate Worth the Swap

The standout feature here is the integrated set screw. Instead of compressing that detent spring by hand and hoping it doesn't fly out, you thread the screw in, seat the spring and detent, then back the screw out. It sounds minor until you've actually fought with a stock end plate a few times. Beyond that convenience, the plate is cut from 6061 aluminum and finished in a Cerakote FDE coat that holds up well against scratches and wear, and it's built to work across both AR-15 and AR-10 mil-spec receiver extensions.

Sling Placement That Works for Both Hands

Because the QD socket sits centered on the end plate, this setup is genuinely ambidextrous. Left-handed or right-handed, you get the same clean attachment point without needing to pick a side. It's a good match for single-point slings or as a rear anchor for a two-point setup, and the low profile means it won't snag or add noticeable bulk to the back of your gun.

At roughly 0.2 ounces, you're not adding meaningful weight to your build, and the FDE finish is a solid color match if you're running Magpul or other flat dark earth furniture. Armaspec includes a #4-40 x 3/16 inch set screw with the plate, and every part they make comes with a lifetime warranty against material or workmanship defects, so this is a buy-it-once kind of upgrade for most builds.