[originally titled: Weight comparison railed FF forends?] - Troy

For more and all the details. Check out TheRicker's chart 4 relys down

Edit 5-12-06

I've gone through the thread and pulled out the weights that people have post for various rail systems that may or may not be in TheRicker's chart and may or may not be completely accurate, but can give you an idea.

MI weights (I assume not installed weights?)

#20- 13.25 oz
#21- 16.3 oz
#22- 23.0 oz

MI rifle length forearm 2pc nonFF.
Weight: 20.0 ounces

Brugger & Thomet Quad Rails
full length = 512 grams, or 18.07 ounces.
carbine length = 305 grams, or 10.76 ounces

LaRue weights
7.0 - 11.5oz
9.0 - 13.2oz
12.0 - 16.5oz

Troy MRF-C (Carbine) 13.0oz installed
Troy MRF-MX (Mid Length) 17.5oz installed
Troy MRF-R (Rifle) 20.5oz installed
Troy MRF-CX is 13.5 oz. on the nose and is 15.5oz installed.


KAC FF RAS 2 is 11.3oz (13.8oz is the installed weight) as per coldblue.


PRI tube weights courtesy of PRI:

PRI rifle free float fore with all rails, steel nut 1.19Lbs (19.04 oz.)
PRI free float forearm with steel nut, no rails .855 lb. (13.68 oz.)
PRI rifle free float forearm with aluminum nut, no rails .700 lb. (11.20 oz.)
PRI rifle length, all rails and aluminum nut 1.015 lbs. (16.2 oz.)
PRI carbine length, all rails and steel nut .95 lbs (15.2 oz)
PRI Intermediate forearm with rails 1.010lb. Steel nut(16.2 oz.)
PRI Intermediate Forearm with Rails and High strength Aluminum nut .865lb. (13.8 oz.)

Clark Carbon Fiber model is only 6oz. Should be less for a carbine

Armalite National Match Fiberglass Handguard Tube (rifle-length)= 11.390" Weight = 1.5 lbs (24 oz).

YHM Rifle Customizable tube (optional rails, free float): 0.92 lb, aluminum tube (14.72 oz).

YHM LW Carbine Length (Overall length: 7.2 in)

Weight 10.6 oz.

YHM LW Mid-Length (Overall length: 9.2 in)

Weight 12.4 oz.

YHM LW Specter Length (Overall length: 9.675 in)

Weight 12.9 oz.

YHM LW Rifle Length (Overall length: 12.5 in)

Weight 14.75 oz.

GGG FF foreend is 16 ounces


End Edit 5-12-06

M4 RAS-8.8 (handguard)+2.5(standard nut that remains)2.5 = 11.3 oz
M5 RAS rifle length-14.1+2.5= 16.6 oz
Ras II-11.3+2.5=13.8 oz
FF RAS carbine-7.2 (handguard) + 4.2(nut)=11.4 oz with out panels
FF RAS midlength-10.3+ 4.2 = 14.5 oz
FF RAS long-12 + 4.2 = 16.2 oz
URX carbine -8.6 (handguard) + 0.3 (nut) = 8.9 oz
URX mid -12.7 + 0.3=13 oz
URX long-14.4 + 0.3=14.7 oz
Daniel Defense-8.5 oz short with nut no panels
BMAS
C-MORE-15.8 oz
FIRSH-10.5 ? including nut ?
GG&G forend~16 oz
ARMS SIR - 18.8 oz(#45c)
DPMS 4-rail-14oz
etc.

If can provide data or point me in the right direction, I would really appreciate it.

I saw a spreadsheat posted awhile back that had a comparison, but I don't think wieght was included (last time I saw it). Maybe it could be added.


Edited to update provided wieghts for easy reference

For more and all the details. Check out TheRicker's chart below

Daniel Defense handguard weights: short (7.0) 8.5 oz mid (9.0) 10.5 oz (not on website yet) full (12.0) 13.1 oz BTW, we are discontinuing the M4 Rail 9.5 which is not compatible with the mid-length gas systems. Hope this helps. southern [url]www.danieldefense.com[/url]

Chart pulled for editing...

Updated 10-12-04:

I really like my FF RAS (short) but I have to admit, I do notice the extra weight. Its no big deal, since I just shoot at the range for fun with this carbine, but I would go a different route if I had to carry the gun all day. --Dan

Based on Email from DPMS: Carbine "4-rail" .88lb (14 oz) standard length 1.40lbs (22.4 oz)

[quote]Originally Posted By dogguy: Hey Southern- Will that new midlenghth that you referred to above allow the use of a standard/fixed front sight? Thanks, dg.[/quote] dg, yes, it will! southern

Originally Posted By Ridge: I'm really curious just how much these things weigh. I'm seriously considering something along these lines but I don't want to add too much weight to my rifle. If you know what a mean (300 lbs of lightweight gear and all . So does anyone know the wieghts of the various forends(including all that is required to attach them to your upper). Carbine length FF RAS~13 oz w/ nut Daniel Defense-8.5 oz short

I'll do some actual weights on Monday when I get to work (at KAC), but one question in regards to the two weights quoted above. Since the DD set-up is an exact copy of our KAC FF RAS, to include requiring a similar new barrel nut, does your posted DD weight of 8.5 oz, include their barrel nut and alignment pins?
Also how do you want the handuard panels factored in. For example, I am happy with three 6-Rib panels on my RAS, but it comes standard with three 11-Rib Panels. Should the weight include removable/switchable panels, or none at all, just the metal parts?

Posts in this thread will show as edited by me as I cleaned up the board code-I made no changes to content-aimless

[quote]Originally Posted By southern: Coldblue, Our weights don't include panels. While our attachment method is very similiar to yours and some others, the shape of our free float is very distinctive in it's duplication of the narrower M4 shape and the additional holes we place beside the gas tube, both of which reduce weight. In light of these differences, your words "exact copy" seem a bit strong. best regards, southern[/quote] Yes (sorry), I wasn't very clear here, I didn't have any half-and-half for my coffee yesterday morning. What I meant was the design and attachment method for the DD forend, i.e., new Handguard Nut, Barrel Nut, and Barrel Nut Pins being required. I actually like the feel of your forend as I am used to that shape from my M249 and M60 days. I think our (KAC) basically "round" shape is fine if minimal size is a factor, but my bigger hands prefer a more oval shape. So when I weight parts tommorow, I am only going to weigh forends without any panels. I will also include the standard barrel nut/delta ring combo weights to the analogous hardware of the alternative forends, FF RAS, URX, etc.

Originally Posted By coldblue: Originally Posted By southern: Coldblue, Our weights don't include panels. While our attachment method is very similiar to yours and some others, the shape of our free float is very distinctive in it's duplication of the narrower M4 shape and the additional holes we place beside the gas tube, both of which reduce weight. In light of these differences, your words "exact copy" seem a bit strong. best regards, southern Yes (sorry), I wasn't very clear here, I didn't have any half-and-half for my coffee yesterday morning. What I meant was the design and attachment method for the DD forend, i.e., new Handguard Nut, Barrel Nut, and Barrel Nut Pins being required. I actually like the feel of your forend as I am used to that shape from my M249 and M60 days. I think our (KAC) basically "round" shape is fine if minimal size is a factor, but my bigger hands prefer a more oval shape. So when I weight parts tommorow, I am only going to weigh forends without any panels. I will also include the standard barrel nut/delta ring combo weights to the analogous hardware of the alternative forends, FF RAS, URX, etc.

No prob, Coldblue. The prevalence of vertical grip use might make our distinctive oval shape a moot point anyway.

I figured that weighing without panels would be the best standard for comparison since people will have their own panel preferences.

We are developing a secret rail mount compartment to hold those little half & half containers.

best regards,
southern

I was told the DD free float tube uses an aluminum barrel nut and this is the difference in weight from the FF RAS (for the most part, I was aware of the profile difference). Is my info correct or not?

Are the barrel nuts from KAC and DD interchangeable? If I buy a DD foreend can I purchase an extra barrel nut?

TAN = DANIEL DEFENSE
OLIVE DRAB = KNIGHT'S

NOTE THAT THE DUMMY (ME) WHO TOOK THESE PICS HAD THE KAC UNIT UPSIDE DOWN.





WE WILL DO THE K-G COATINGS ON OUR SPR'S WE BUILD, BUT NOT INDIVIDUAL FORENDS.

WES GRANT
MSTN.BIZ

What's the wt. of the ARMS #50 slim line I have. and I do notice that it is not front heavy since some of it's wt. is dispersed to the top of the receiver. How the heck do you figure beyond the front of the receiver, cut the off the back of the SIR, I sure wouldn't on mine. The weapon is the best balknced FF that I have handled. Good shootin, Jack