KAC M4 RAS Rails (Factory Blem)

[C4IGrant]

@uniform64

Grant,
Thanks for the great pics. Interesting info. So who owns the patent if there is one?
Who then is KAC making their RAS for? Civilians?
Is the quality the same? They look it.

thanks

confused in CA

The Govt has the TDP (which they purchased from KAC). The Patent still belongs to KAC.

KAC still sells to the Govt, Civy’s, LE, etc.

C4

[C4IGrant]

@markm

There was someone on TOS posting as a rep of KAC who claimed that the P&S units made in Texas were licenced. The question came up when a dude in Iraq got a shipment of them and wondered what the deal was.

To my knowledge, they are made in KY.

Licensed isn’t quite right. The Govt bought the TDP and then did an open bid. P&S won it and now produces the rails for the Govt.

C4

[Quib]

My KAC RAS arrived today. Only thing out of the norm, was the rail indexing. R28-R14, is on the left. L28-L14, is on the right.

[Zanshin]

Received my RAS today. Some scuffs but nothing horrible. I think the numbering is okay (i covered them up with the rail covers).

Note to users: put the covers on BEFORE you install the top rail on an M4 with standard FSB setup. I had to remove the rail to install the cover on the side of the barrel with the sling swivel. Not a big deal but I hate messing with the barrel nut.

Dom

[III]

You should never put a rail panel on the top rail. It blocks the heat and is not possible to remove if you need to mount something.

[Zanshin]

I was referring to the left side rail. I was able to slide the covers on the right side and bottom rail from the front. However, I could not slide the left side cover from the front because of the sling swivel. From the rear the barrel nut is in the way.

Not a big deal though because it is a drop in rail so I uninstalled it and slid the cover on before reinstalling it.

Thanks for the info about the top rail though. I have never tried putting a rail cover on a top rail but at some point I probably would have :rolleyes:.

You can see what I mean from the picture below. The rail cover is blocked on one side by the barrel nut and the other by the sling swivel.

This rail feels really tight once installed.

[uniform64]

Is there a limitation on what barrel contour you can use with this RAS, KAC or otherwise?

thanks

[KevinB]

KAC gave/sold the TDP to the Army. The Army competed the contract and P&S won on cost.
P&S can sell to the Army and to Colt for US ARMY weapons ONLY.
Any sales to civilians, other US Military entities, or Foreign Orders are outside the contract, and forbiden.

We still sell a number of M4 RAS to both the Military and Colt, as well as the M5 RAS, and M4 RIS systems.

You can use any government profile barrel on a RAS, and you can use any government profile barrel on a RIS.
The “heavy” barrel designs that are thicker than the Colt RO921HB barrel on the M4A1HB may not allow for enough room between the handguard retaining cap.

[uniform64]

@KevinB

KAC gave/sold the TDP to the Army. The Army competed the contract and P&S won on cost.

P&S can sell to the Army and to Colt for US ARMY weapons ONLY.
Any sales to civilians, other US Military entities, or Foreign Orders are outside the contract, and forbiden.

We still sell a number of M4 RAS to both the Military and Colt, as well as the M5 RAS, and M4 RIS systems.

Thanks for the info KevinB.
As for my question above, will these fit a 16" colt HBAR BBL?

thanks

[Frens]

@uniform64

Thanks for the info KevinB.
As for my question above, will these fit a 16" colt HBAR BBL?

thanks

yes,

I have a KAC RAS on my 6721