Colt Canada Rifles (Parts Compatability)
- Thread starter EDX2308
- Start date
DaveMachine
CGN Ultra frequent flyer
- Location
- That one place with a cowboy complex
As long as they don't sell them with the older Canadian style flat tops that picatinny stuff doesn't fit I will be happy.
Having shot with both, I can see how the A2 sights, though nicer looking and more functional, aren't really necessary. The A2, depending on what you have is adjustable out to 800m, which is about as optimistic as my No1 MKIII's 2000yd adjustment. A 300m zero on an AR15 will have you hitting a figure 11 out to about 450m without holdovers. For a patrol rifle with iron sights, that's more than you need.
Lighter weight, uncomplicated, solid zero thats not going anywhere, I'm starting to think the A1 is my preference as well.
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The A1 is way more rugged as a combat sight in a combat role. I find that after two or three range trips the sights lose zero from bouncing around in the trunk of my car. The culprit is likely the windage knob being moved around.
I do the standard military 300m combat zero on my A2 carry handle. It's not a supper precision zero, it's a zero to hit a man sized target at average combat engagement range.
IRL your not engaging any type of threat effectively with irons past 300m so a sight with adjustable elevation beyond that is trivial. The precision windage knob on the A2 easily loses zero and you'd probably never start adjusting windage clicks in any combat role. The old A1 detent spring wheel design is truly solid. Especially on non flattop uppers, you could zero the rifle once and it would be good almost forever.
Travis Bickle
CGN Ultra frequent flyer
- Location
- Upper Lower Middle Alberta
Same, I have a dedicated USGI A1 upper on my M16A1 clone and they are good. How good? Exactly good enough for a light weight battle rifle
The A2 rear sights were the answer to a question nobody asked. Sorry; an overcomplicated answer to a question nobody asked.
I've never had a single issue with my A1 sights, I don't see what the purpose of elevation adjustments on the rear sight of a rifle with an effective combat range of about 300 meters is. That's why the front post goes up and down.
Well all I can say in over 25 years shooting ARs/C7s I've used both the A1 and A2s as issued and in a sporting/competitive arena. I've never lost zero with the A2s and I've used them effectively out to 600m. IMHO, there is good reason good quality detachable 'BUIS' systems still come with range and windage adjustments.
I've shot the DCRA SR 1-12 with A2s and broke 400 (pretty decent shooting in my books) - something that is very unlikely with A1s.
Oh, and good luck with hold-overs past 300m...
Ymmv.
I've shot the DCRA SR 1-12 with A2s and broke 400 (pretty decent shooting in my books) - something that is very unlikely with A1s.
Oh, and good luck with hold-overs past 300m...
Ymmv.
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The maximum range at which the very best frangible ammo (MK262 which is 77gr OTM bullet) will fragment reliably out of a 20" barrel. Roughly 300m.
I'm sure you can use A2 match sights out to 600m, high power guys do it out to 1000 and beyond. With that being said any "real" target e.g. a human with a brain that moves and tries to avoid dying is going to be almost all but impossible to hit past 300m in your standard .223 platform with a CQB to mid range optic.
