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Posted: 11/18/2012 6:36:56 AM EDT
| Can someone elaborate on the time frames for Square Forge Recievers. They have a early and late Square Forge where the ejection port lines up with the lower and one that doesnt. |
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http://imageevent.com/willyp/firearmsalbums/uscoltarmalitem16ar15556/m16partsvariations/uppercomponents
The square forge without the ledge matching is a "transisition" model. I have one.. 
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| Don't think the dating is carved in stone but very approximate. Heck I haven't seen too many of anything square forge in the last couple years except SP-1. With XM16E1 being the highest demand M-16 is does make sense that not too many of the earliest receivers were left on the shelves. 604 was a little different as they didn't sell like the XM's after initial purchases and there was the civillian market for the leftovers. |
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Quoted:
Don't think the dating is carved in stone but very approximate. Heck I haven't seen too many of anything square forge in the last couple years except SP-1. With XM16E1 being the highest demand M-16 is does make sense that not too many of the earliest receivers were left on the shelves. 604 was a little different as they didn't sell like the XM's after initial purchases and there was the civillian market for the leftovers. Hence the "ish" suffix after the top 2. 
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