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View Full Version : DSA short gas railed handguard (BIG pics)


fuel fire desire
September 29, 2017, 13:51
I've been on a quest to make my DSA Tactical Carbine as 3 gun friendly as I can. I'm a fan of the AFG, but didn't like the amount of drop the $20 DSA rail adapter gave the grip. The best option I have found to bring the AFG as close to the barrel as possible is the DSA railed handguard. And here it is.


I was apprehensive about buying it, as it looked a bit like a Chinese UTG AR handguard, and was afraid fit and finish would follow suit. The handguard is a two piece, held together by 6 machine screws, plus one cross bolt for the gas block.

<a href="https://imgur.com/5OnDeCL"><img src="https://i.imgur.com/5OnDeCL.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/iBOG0v5"><img src="https://i.imgur.com/iBOG0v5.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/nNS1E2j"><img src="https://i.imgur.com/nNS1E2j.jpg?1" title="source: imgur.com" /></a>



It is most definitely cast, but there are a surprising amount of machine processes within the interior. All sharp corners and edges have been rounded off, and the naked rails are actually comfortable to hold.


<a href="https://imgur.com/qDtgMOi"><img src="https://i.imgur.com/qDtgMOi.jpg?1" title="source: imgur.com" /></a>




Not only do the two pieces mate together about as tight as you'd want, but the seam has no overlap or asymmetrical gaps. Running your finger across it feels as if it's a singular piece.






Fitment on the rifle is very snug. The instructions State that machine fitting may be required, but on my DSA it fit as if it were matched to the rifle. There is also a leaf spring in the rear of the lower half that puts tension against the base of the barrel, presumably to further tighten fit. The rail section butts up against the DSA top cover with a 1mm gap, though the elevation of the two rail sections are just SLIGHTLY off. The handguard rail sits a fraction of a millimeter lower than the top cover rail. It's not a very visible difference, but laying a straight edge along it yields a bit of wobble.



I was surprised to see the crossbolt, it's head, and nut fit absolutely flush within the cut notches. The relief cuts are not symmetrical, and the nut can only go in on one side. The gas regulator is very exposed, and easy to access with two fingers to twist it with force if needed.


<a href="https://imgur.com/KwkBiTU"><img src="https://i.imgur.com/KwkBiTU.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/mgdUScX"><img src="https://i.imgur.com/mgdUScX.jpg?1" title="source: imgur.com" /></a>




The lower half of the handguard fits very close with the barrel. It almost touches, but not quite.



<a href="https://imgur.com/XQCI4LG"><img src="https://i.imgur.com/XQCI4LG.jpg?1" title="source: imgur.com" /></a>




Shooting the rifle, I immediately noticed improvements. The first being an overall more solid feel to the rifle. No more creaking plastic, and the AFG is now rock solid. Double tap groupings at 100 yards are more controllable now that the AFG is tucked further up next to the bore axis.

<a href="https://imgur.com/yvNLdOv"><img src="https://i.imgur.com/yvNLdOv.jpg?1" title="source: imgur.com" /></a>



There two downsides I've noticed after a day of shooting. In true FNH fashion, the color is a total mismatch to any other black on the rifle (think FDE SCAR). The dust cover rail and top hand guard rail are very close in color (both a matte deep purple-black), but not quite, while the lower half of the handguard is a totally different satin pure black. It's apparent that both haves went though two separate annodization processes. It's really only noticeable in sunlight...but it's still a misstep in quality control two have two mated parts go through two separate coating lines.




The other issue, is this thing gets HOT. I was expecting it to, with as close to the barrel as the lower half sits and how much metal to metal contact the handguard has with the gas block.....but MAN does it get uncomfortable quick. I did two magazines worth of double taps at 100 yards at a moderate pace, and my palm kept trying to lift away from the hot lower rail, and my thumb (which was resting on the portion of the handguard in direct contact with the gas block) is probably going to produce a blister here in the next hour. Though, this may be a trait of the carbine too. My standard plastic handguard got uncomfortably warm as well with similar types of shooting, but not to the point an actual burn is a risk. Padded gloves are a must from now on.







<a href="https://imgur.com/WQ2iyF4"><img src="https://i.imgur.com/WQ2iyF4.jpg?1" title="source: imgur.com" /></a>

1911Ron
September 29, 2017, 17:11
Imgur is who i use as do others, when you go to post there is at the bottom right is the different sizes, choose the large thumbnail then click BBcode copy button and in your post where you want your picture click ctrl-v like so
https://i.imgur.com/0kp1Fsvl.jpg

fuel fire desire
September 29, 2017, 18:46
Imgur is who i use as do others, when you go to post there is at the bottom right is the different sizes, choose the large thumbnail then click BBcode copy button and in your post where you want your picture click ctrl-v like so




I must be stupid. I don't see any of those options in my iPhone app. I'll try to resize them from a computer later tonight.

bigsky
September 29, 2017, 22:15
nice write up fuel, pics are a little robust though:D:D

the gman
September 30, 2017, 09:25
On imgur, you have the option to edit photos after upload and before posting. Simply hover over the image and you'll see two icons appear: one has a pencil on it which will take you to the edit function. You can then crop, rotate, resize and manipulate the image as you please. I reduce all my photos to 1024 with the proportions locked and they come out fine. I appreciate the write up but with these huge photos, its extremely difficult to read. :sad::sad:

the gman
September 30, 2017, 09:44
Resized them for you: :shades:

<a href="https://imgur.com/5OnDeCL"><img src="https://i.imgur.com/5OnDeCL.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/iBOG0v5"><img src="https://i.imgur.com/iBOG0v5.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/nNS1E2j"><img src="https://i.imgur.com/nNS1E2j.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/qDtgMOi"><img src="https://i.imgur.com/qDtgMOi.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/qDtgMOi"><img src="https://i.imgur.com/qDtgMOi.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/KwkBiTU"><img src="https://i.imgur.com/KwkBiTU.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/mgdUScX"><img src="https://i.imgur.com/mgdUScX.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/XQCI4LG"><img src="https://i.imgur.com/XQCI4LG.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/yvNLdOv"><img src="https://i.imgur.com/yvNLdOv.jpg?1" title="source: imgur.com" /></a>

<a href="https://imgur.com/WQ2iyF4"><img src="https://i.imgur.com/WQ2iyF4.jpg?1" title="source: imgur.com" /></a>

fuel fire desire
September 30, 2017, 10:33
Yep. They were bad. I blew them all out. Thanks for the resize. I use iOS for everything and I guess I need to relearn everything again now that PB is gone.