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Posted: 3/21/2026 10:42:22 AM EDT
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Who all, or does anyone, make lowers like the Aero M4E1 lower? Or, specifically, does anyone make a lower that has a screw for the bolt release as opposed to a roll pin? I know of Sharp's making an ambi lower like that. |
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5D tactical has (had?) some 80% lowers that were pretty close to Aero's M4E1. ETA - Current listing says threaded bolt catch. https://www.5dtactical.com/products/billet-ar-15-80-lower-black-anodized/ 
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If you're worried about installing the bolt catch, you can get something like the Griffin Armament MK2 Ambi Lower. The bolt catch is already installed and they're nice lowers. https://griffinarmament.com/product/mk2-ambi-stripped-lower-receiver/ |
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