Building an AR is harder then I thoguht... Help with 300m build please?
- Thread starter Jeff000
- Start date
You are correct. 400 yard shots are very doable even for an avid shooter. That being said the potential for misses is high, but there is still the potential for hits as well. I'm not betting my life on anyone's ability or inability. Finding out that you chose poorly is no way to lose a bet.
TDC
I like the Float Tube, but seems they dont allow bipod mounting? One thing I like is they are way cheaper then the other two options, or seems to be anyways.
After a couple searches I am still not really sure what sig you are referring to
Float tubes are fairly easy to drill into and mount a sling swivel stud into.
You can then mount a Harris bipod directly to the stud.
Sig black Special:
Float tubes are fairly easy to drill into and mount a sling swivel stud into.
You can then mount a Harris bipod directly to the stud.
Sig black Special:
Ah if I can drill and mount then thats good to know
This sig.... to me looks very similar to an AR-15. Does it accept AR parts? like could i put a stock and float tube made for an AR onto it?
- Location
- BC, In a Van down by the river!
Kev,
What do you suggest for our friend/me for a best overall/bang/can only have one AR, for the buck. A 14.5 or 16?
I prefer 16" midlength guns - as I think they are the best GP platform out there.
Larue makes a very nive middy, as does Bravo Company, Sabre, Noveske, and CMMG. Armalite irks me due to their 1:9 barrel, and I like to be able to shoot the Mk262 (77gr SMK) and M856 (Tracer).
Aesthetically I dont like the 16" carbine gas system guns.
Larue makes a very nive middy, as does Bravo Company, Sabre, Noveske, and CMMG. Armalite irks me due to their 1:9 barrel, and I like to be able to shoot the Mk262 (77gr SMK) and M856 (Tracer).
Aesthetically I dont like the 16" carbine gas system guns.
No, they won't accept AR parts....but look at that as a good thing
Edit that: There is a butt stock adapter to change the butt to one from an AR.Floating the barrel of the Sig is in the works, but there is nothing yet available.
No, they won't accept AR parts....but look at that as a good thing
Floating the barrel of the Sig is in the works, but there is nothing yet available.
Hows the Sigs accuracy out to 300 so far?
This target is a copy of a standard IDPA target I shot at 400m, prone, slow fire, off of the mag. The barrel was changed to a 1:7 twist, and the ammo is 77 smk handloads with Varget (24 gr.) and match primers. (I should add as well the rifle is equipped with a Nightforce 2.5x10 power NXS that was set to '10') I believe all 50 out of 50 are on the cardboard, and gives a good indication of practical accuracy with this platform. A similarly equipped AR should do as good if not slightly better.
Last edited:
16" upper
I definitely agree with Kevin B, 16" gets my vote for optimal carbine barrel length.
That said, if I was building an AR for "long range" shooting (and I am) I would put a 20" heavy contour barrel on it.
From an AR-15 platform, you lose about 100FPS for every inch you lop off of the barrel. Not only that, but the shorter the barrel, the less accuracy you can expect. A short barrel can still be very accurate, and in fact I believe Les Baer custom makes uppers using 11.5, 14.5 & 16" barrels -Somebody please correct me if I'm wrong. -
The issue is barrel QUALITY. I have a practically new 16" Armalite upper that shoots about as well at 100m as Beltfed's rifle does at 400. That's not the only issue with the gun, but it's safe to say I will never buy any Armalite parts again.
If you want tips on how to build a tack-driver AR-15, you should pm "Catwork." I believe he's made a number of longe range ARs, and recently sold one of them off.
If you do end up going with an "ordinary" upper, you don't need a rail to use a Harris bipod. Harris makes an adapter for AR handguards that costs about $8.00. It screws in to the holes in the handguard & heat shield, and provides a sling swivel to put your bipod onto.
Hope this helps, cheers.
Tim
EDIT!!!!! It's Larue tactical that makes the short uppers. Larue's "Stealth" uppers are available with 12, 16, 18, & 20" barrels, and are a steal at $1200. (if you live in the states)
I definitely agree with Kevin B, 16" gets my vote for optimal carbine barrel length.
That said, if I was building an AR for "long range" shooting (and I am
) I would put a 20" heavy contour barrel on it. From an AR-15 platform, you lose about 100FPS for every inch you lop off of the barrel. Not only that, but the shorter the barrel, the less accuracy you can expect. A short barrel can still be very accurate, and in fact I believe Les Baer custom makes uppers using 11.5, 14.5 & 16" barrels -Somebody please correct me if I'm wrong. -
The issue is barrel QUALITY. I have a practically new 16" Armalite upper that shoots about as well at 100m as Beltfed's rifle does at 400. That's not the only issue with the gun, but it's safe to say I will never buy any Armalite parts again.
If you want tips on how to build a tack-driver AR-15, you should pm "Catwork." I believe he's made a number of longe range ARs, and recently sold one of them off.
If you do end up going with an "ordinary" upper, you don't need a rail to use a Harris bipod. Harris makes an adapter for AR handguards that costs about $8.00. It screws in to the holes in the handguard & heat shield, and provides a sling swivel to put your bipod onto.
Hope this helps, cheers.
Tim
EDIT!!!!! It's Larue tactical that makes the short uppers. Larue's "Stealth" uppers are available with 12, 16, 18, & 20" barrels, and are a steal at $1200.
(if you live in the states)
Last edited:
Ultimate accuracy look at MSTN builds over on AR15.com they know their stuff.
Kreiger, Shillen, Douglas, Noveske are barrels used by them. Most should be importable here due to 18" or longer length and no 5.56 chamber.
Kreiger, Shillen, Douglas, Noveske are barrels used by them. Most should be importable here due to 18" or longer length and no 5.56 chamber.
go with a Wylde chamber - works with M855 ammo and also with MATCH.
I have some of Wes Grant (MSTN)'s builds -- inc a very nice 18" gun (with no rounds thru it, it was bought for a friend who I cant get it too anymore).
I have a Larue Stealth 12 and 16" uppers in the US and a co-worker just got a 12" as well.
I have some of Wes Grant (MSTN)'s builds -- inc a very nice 18" gun (with no rounds thru it, it was bought for a friend who I cant get it too anymore).
I have a Larue Stealth 12 and 16" uppers in the US and a co-worker just got a 12" as well.
I have a Colt 16" carbine that I bought used that really sucked for accuracy.
I ended up scrubbing the barrel with JB bore paste and it now shoots very well.
My experience with Armalite has been fairly small, but decent.
Since your's is new or nearly new, I would check the ammo first and then the barrel.
Thanks for the tips Beltfed.
I've had the upper for about a year, but only had it out shooting once, I haven't been home enough to do any trouble-shooting!
I was considering barrel lapping as one possible solution, but I've got a few more tricks to try first, if I'm ever home long enough to go to the range again....sigh......
Cheers.
Tim
I've had the upper for about a year, but only had it out shooting once, I haven't been home enough to do any trouble-shooting!
I was considering barrel lapping as one possible solution, but I've got a few more tricks to try first, if I'm ever home long enough to go to the range again....sigh......
Cheers.
Tim
- Location
- BC, In a Van down by the river!
Rog. Thx...and way to go, I was leaning towards the 14.5 and thanks to you I'm leaning to the 16 again. (Both Sabre though) Cheers.
+1 for 16" mid-length sabre
Be prepared for a bit of a wait though; I just ordered mine and the word is that the wait will be something like 3-4 months.
On the upside, everyone seems to agree they're one of the very best quality AR makes out there.
- Location
- BC, In a Van down by the river!
Kev,
excuse me for beating a dead horse here but what would be any significant differences between the 14.5/16. I know the usual arguments, but what are you guys in the know seeing? I'm guessing not a whole lot of difference, but the last time I shot an AR was a c7/c8, so there was a big difference. Not sure what differences I would feel with just 1.5 in. (that didnt sound right hahaha....) I just need a tie breaker. Price is the same on both.
excuse me for beating a dead horse here but what would be any significant differences between the 14.5/16. I know the usual arguments, but what are you guys in the know seeing? I'm guessing not a whole lot of difference, but the last time I shot an AR was a c7/c8, so there was a big difference. Not sure what differences I would feel with just 1.5 in. (that didnt sound right hahaha....) I just need a tie breaker. Price is the same on both.
