Can I assemble an anderson brand lower for AR-15 with an upper from another brand? Are these Anderson lower receivers compatible with upper from other brands?

Question

Trin K. · Answer

YES, your Anderson lower will fit an upper from any brand. BUT, fit will vary between different manufacturers...some are really hard to get it to fit together. I hope this helps!

James G. · Answer

Karimar, yes Sir. This is a mil-spec lower and will fit the vast majority of manufacturer uppers without issue. A few may require a gap plug if the upper to lower fit is loose  :  https://www.budsgunshop.com/product_info.php/products_id/713073344/kleen+bore+accu-wedge+for

Paul F. · Answer

Yes, you can use another brand assembled upper or build/assemble your own upper, and it will be compatible with this lower.

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Can I assemble an anderson brand lower for AR-15 with an upper from another brand? Are these Anderson lower receivers compatible with upper from other brands?