This may be one of Eberlestock's stranger revues, I bought this frame to replace one from an older model. I had to cut it down a bit, because they don't make one smaller, then bent it a bit and made it fit. It shaved 6 ounces from the old one, not much to some people but it you are one that backpacks a lot...

Fit perfectly work great

Just installed this plus the Tactical Scabbard in my Little Brother pack. Customer service said they would co-exist if I installed the frame in the main compartment instead of the Scabbard tunnel. I tried to fit both the Scabbard and Endo into the Scabbard tunnel but it wouldn't stay unless you zip up the tunnel, forcing the removal of the Scabbard. There really isn't any place to secure the frame in place, inside the main compartment. There is no videos showing how to install in either the tunnel or compartment. The frame does stiffen the pack some but causes the Scabbard to become super tight when dawned and Rifle inserted. I'm afraid it will damage my optic, plus the rifle will cause a protrusion in the pack that will hit you in all your pressure points in your back with the frame installed inside the main compartment. Maybe a little help or guidance is what I need. Otherwise it's exactly what you expect from Eberlestock. Rugged and light weight, with high quality materials.

**UPDATE**

Eberlestock reached out to me and helped resolve the problem for the most part. However the fact the little brother or many other packs have no way to properly secure this Frame inside the pack leaves much room for improvement.

Purchased for my son's Big Brother pack, stiffens the pack substantially and is very lightweight. He is current active army and is using on his rucks, loves it!

I added this to my little brother pack and it made a big difference. It was tight putting it into the scabbard tunnel.

I purchased this for my little brother bag that is part of my war hammer bag. It has made a huge difference. Makes it rigid enough to stand up. Lightweight yet sturdy.

Fit is good, adds stability to the little brother pack.highly recommend

I misread the question and answers regarding the product and after receiving the frame found out it didnt fit my switchback pack. Totally my fault. However, I used it in another (cheap) pack successfully and it seems to work well. It is a nice light weight addition to provide some rigidity to a pack without a frame.

I’m my opinion the bag can work fine without it - but I did want something with a bit more stability. Some might find the lack of structure in the lil’ brother a design flaw.

Anyway, this is a cheap, light, and effective solution to resolving the structure issue.

Loved the lil’ brother before. Love it even more now.

I ordered this form my G1 Little Brother and it works well! Super easy to install and remove plus the weight is very low.