Colt ar15 hbar .223

vince514

vince514

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Hi guys

Im new here and i dont know very much about ar15 this is my first rifle.. it has a 20" barrel.

I want to know if this is true.. I ve been told that i can't do almost no modifications with my new colt ar15 hbar.. like it is impossible to fit another upper with the colt lower? all i can do this is mount a scope on the carrying handle? can i fit another buttstock? tell me what i can do to this rifle please..

i like this rifle like it is *Classic* but if i can mod it.. it's even better..

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Not true. All furniture will fit your gun, it was the standard back in the day. Uppers are another matter and depend on the type of front pin. Is it a dual slotted head screw, or a push pin?
 
You're certain that both the front and back pins on the lower are push pins? That would be most unusual.

There's nothing wrong with your AR15 as is. What do you honestly want to modify on it? If you must, you could swap out the front handguard, you can swap out the stock, you can slap a scope ontop of the fixed carry handle, you can change the flash hider. About the only things you can't do is put a bayonet on it or take the carry handle off.
 
exactly i cant take off the carry handle that's why i was wondering if it possible to fit another upper..

about the push pins i dont have my gun yet but i can remember the guys at the club was showing me how to disassembly this weapon the guy used a little punch for the push pins there was no screws.

will provide more infos when i have the gun guys.
 
Nearly all AR15 uppers can be mix matched with nearly all AR15 lowers (there are obviously some exceptions). The thing about most of the 1990s made Colt AR15s is that they had a large hole with an annoying threaded screw assembly instead of the front push pin. It sounds like your rifle doesn't have this (which would be odd for a "Colt HBar". There are different Colt models that did have small push pins front and back). However, even if it does have this, you can buy a bushing that'll reduce the size of the hole so you can use conventional push pin uppers or lowers with either half of the Colt rifle (Google: Dlask, they seem to keep them in stock).
 
Daniel Defense also makes a large hole flat top upper if it turns out that's what you have. If you do go that route just make sure you specify no M4 ramps if you're using the same barrel that's already on there.
 
I believe those "post ban" with a sear block comes with small hole (.250 in), those without the sear block came with large hole (.315 in).
Mine was bought in '95. It has a threaded bolt at the front. But both holes are .250 inch, with a sear block. The sear block will not fit drop in trigger group AFAIK.
But not sure about the newer generation.
 
MUGEN said:
I believe those "post ban" with a sear block comes with small hole (.250 in), those without the sear block came with large hole (.315 in).
Mine was bought in '95. It has a threaded bolt at the front. But both holes are .250 inch, with a sear block. The sear block will not fit drop in trigger group AFAIK.
But not sure about the newer generation.
Click to expand...

Every 90s era Colt AR15 I've owned had the sear block. All the newer ones have the web machined in instead.
 
i like my rifle how it is but when i see everyone pimping their ar15 i just wanted to know if i can do any modifications just in case i want to.. the club staff told me i CANT fit another upper on this one i should believe em.. maybe that's only because they are suggesting me to keep it classic i dont know.. but they know what they are talking about.

if i cant do what i want with my rifle im just gonna buy a stag arms or a lmt later..

Another question : I've noticed a weird / sound feeling when shooting it.. looks like a spring noise in the buttstock when i was shooting it is it normal?
 
My friend owns a 10.5"LMT 5.56 and 7.5" PWS Diablo 7.62x39.
After blasting his rifles (yesterday) I let him try my '71 Colt SP1. He had a big smile on his face and said my rifle sounded like a "pop-corn machine". So yes, they sound/feel "weird";)
 
Colt small hole receivers are known as mil-spec.

Early production Colts for the civilian market were produced using large hole receivers. Colt did this 'till around 1994.

As a rule of thumb, all Colts without the sear block in the lower receivers, are large hole. The pre-ban receivers with the sear block are receivers used during the transition years. There were variants produced as well to use up leftover stock.

From 1963 to 1989 Colt produced large hole receivers with three prong flash hiders and later with the A2 birdcage.

During 1990 they produced small hole receivers with the smaller mil-spec trigger and hammer pins. In 1991 they produced small hole receivers without the bayonet lug, in 1992 they introduced the DIAS block and in 1993 Colt went back to the large hole receivers to use up old stock while introducing larger trigger and hammer pins.

Colt did weird things during their transition years and nobody definitely knows what they used to make ends meet.
 
thanks Easy for all those historical informations i've learned something.

guys dont flame me for this question like i said im new in the AR15 world..

Can i change something in my rifle to get rid of that buffer spring sound? its annoying

reminds me when i was shooting my .177 pellet rifle.. i never knew about that when i was touching the rifle but after first shot i noticed it real fast.
 
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vince514 said:
thanks Easy for all those historical informations i've learned something.

guys dont flame me for this question like i said im new in the AR15 world..

Can i change something in my rifle to get rid of that buffer spring sound? its annoying

reminds me when i was shooting my .177 pellet rifle.. i never knew about that when i was touching the rifle but after first shot i noticed it real fast.
Click to expand...


If you grease inside the buffer tube it should help reduce the sound, but likely won't eliminate it. But frankly, the sound can be a good thing. I love the sound of mine, it's reassuring. A consistent sound means the rifle is working the way it's supposed to. An inconsistent sound is symptomatic of something not being quite right (bad ammo, problem with the BCG, etc.).
 
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