This is a proven system to attach a magwell to your 1911 without modifying your pistol. The magwell attaches to slots in the grips.

The grips are their G10 ChekTec Aggressive and the magwell is their IPSC SP.

The kit was used for a couple of range sessions and one match. The magwell itself shows some tiny superficial marks from use.

$90 or trade for 9mm and 45ACP ammo. We can meet somewhere in Loudoun or Fairfax county or I can ship on your dime.

Check out the Wilson mags and holster kit I have listed if you're interested. Thx for looking!