will Quick Detach Accessories will leave marks on the Rails?

[Skang]

There are many companies out there makes Accessories for you rails.

My favorites are LaRue Tactical, Tango down.

My question is, will their mounts with Quick release leave damage/mark the rails on the gun?

[snaf]

not too sure about the tangodown/adm levers but the larue will rub and leave a shiny mark where the lever rubs against the rail

[Dos Cylindros]

My LaRue M4 mount leaves a mark on the rail. I do wonder after repeated removal and mounting if it would wear down the rail and cause it to be loose. I guess you could just tighten it up to compensate for the wear.

[Shooter101]

Some do and some dont. If you have a mount that screws on more than likely not, If you have one with the LaRue or A.R.M.S. throw levers, YES thedy do.

[thopkins22]

Damage? No. Mark? Yes...but not nearly as much as the metal slider on the VCAS will scratch the left side of your magwell.

[Frens]

ADM mounts wont leave marks on the rail

[Skyyr]

Mounts that have any type of sliding action against the rail WILL remove anodizing and therefore mar your rail. To the poster that said it was cosmetic only: it's not.

Companies like Nightforce specifically suggest avoiding the use of friction-based mounts (namely Larue), as the rail becomes permanently deformed (if only microscopically) and the mount must be re-adjusted over time.

I'm sure some of the hardcore Larue fans, as well as the function-first types will say it's BS and that it doesn't matter. A quick review of basic engineering will prove this is not only 100% correct, but it's expected from mounts of this design. In regards to it not mattering, that's subjective. If you safe queen your rifles or have precision rigs, then it matters just as much as the ammo that you buy for your guns. If you're a carbine-course regular who will shoot out their barrel in just a few years, then you won't notice. Either way, it does happen and it is a factor to some people.

If you disagree, call every high-end optics manufacturer (Nightforce, US Optics, S&B, etc). They will all say the exact same thing: They don't advise using the Larue-type QD mounts. I called Nightforce three weeks ago and got the exact same explanation from their tech-support guy (forgot his name).

Conversely, spring-based mounts do not mar the rails or leave such marks. Bobro and ADM are examples of mounts that utilize springs to keep tension on the rails. The downside to this design is the potential for the springs to wear down over time. Of course, as in the case with Larue mounts, this is greatly over-exaggerated, as it would take hundreds of on/off operations to weaken them. Note that this is not an issue with the Bobro mounts, as they continually self-adjust.

So why don't more people use spring-based mounts? Simple: more parts = more points of failure. That said, I've never seen ONE example of a spring-based mount failing in combat. Take it for what it's worth to you.

[Killjoy]

Companies like Nightforce specifically suggest avoiding the use of friction-based mounts (namely Larue), as the rail becomes permanently deformed (if only microscopically) and the mount must be re-adjusted over time.

This is why I don't (or anyone I know who shoots precision rifle) use QD rings or bases on my precision rifle; these can make a slight difference on the accuracy of your rifle.

While I agree, I think using a friction mount on a carbine is less of a problem, especially if you rarely detach the accessories.

[QuietShootr]

There are many companies out there makes Accessories for you rails.

My favorites are LaRue Tactical, Tango down.

My question is, will their mounts with Quick release leave damage/mark the rails on the gun?

If they're your favorites, wouldn't you already know whether they leave marks on a rail or not?

[d90king]

What the hell is going on with this site lately?

Who cares if they leave a mark on your rail? It's a firearm, it's not meant to look pretty, it's a tool nothing more and nothing less. Do you care if your hammer has a mark on it from driving nails?

If a mount locks solid to my rail and holds zero, thats what I care about. If the mount leaves a mark I couldn't care less.

For the love of all thing holy this shit has got to stop.

For the record, LT mounts that are tightened properly WILL leave a mark. You know why? Because they are doing their job.