Is there a question here?
Are you talking about the "lip" on the foregrip that the front set screw goes through to hold it together?
http://echo1usa.com/shop/index.php?main_page=product_info&cPath=44_90&products_id=842
I think that is what you would want, but I would call ahead.
EDIT:
And I wouldnt get an L96 to upgrade to if you have upgraded your ASR. I would try to find an APS or the Javelin M24 (CA APS clone for the most part), the expensive parts of an ASR (piston, spring, guide, bolt etc.) are APS parts.
Are you talking about the "lip" on the foregrip that the front set screw goes through to hold it together?
http://echo1usa.com/shop/index.php?main_page=product_info&cPath=44_90&products_id=842
I think that is what you would want, but I would call ahead.
EDIT:
And I wouldnt get an L96 to upgrade to if you have upgraded your ASR. I would try to find an APS or the Javelin M24 (CA APS clone for the most part), the expensive parts of an ASR (piston, spring, guide, bolt etc.) are APS parts.