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Posted: 6/2/2023 8:00:38 PM EDT
[#1]
Very common for ‘80’s models to have old SP1 type slab side lowers.
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Posted: 6/2/2023 8:04:28 PM EDT
[#2]
You are describing my first AR.
A2 upper on a SP1 lower. Large hole pivot screw. Semi auto bolt carrier. I believe the model was 6550 or 6551. They were plentiful, IIRC |
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Posted: 6/2/2023 8:06:07 PM EDT
[#3]
I had one for a long time then sold it. Yes I was stupid, but I made stupid money on it.
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Posted: 6/2/2023 9:35:51 PM EDT
[#4]
My ‘87 6420
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Posted: 6/3/2023 6:42:42 AM EDT
[#5]
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Posted: 6/3/2023 9:32:45 AM EDT
[#6]
My slab side Competition Match Hbar, this one is sear blocked and primarily used as my guest match rifle, an elegant retro AR.
 Attached File |
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Posted: 6/4/2023 5:03:56 AM EDT
[#7]
Very Common- Colt had thousands of upper and lower forgings from the early Model 601. These forgings became obsolete when the US military went to the forward assist and the non-removable front pivot pin. Colt never throws out parts. The forgings were used up in the building of the Sporter series of rifles.
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Posted: 6/6/2023 12:09:33 PM EDT
[#8]
Slab side lowers were on just about every Colt Civilian rifle from the 60s to the early 90s.
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