FIRST OF ALL C.I.A. STANDS FOR CENTURY INTERNATIONAL ARMS.....THEY WERE RESPONSIBLE FOR REINTRODUCING THE L1A1 RIFLE TO THE US ......LET'S CALL THAT ATTEMPT NUMBER ONE....THEY HAD A PLASTIC / NYLON  THREE PIECE US MANUFACTURED COMPLIANT  STOCK SET MADE BY A US COMPANY   ...HANDGUARD PISTOL GRIP AND STOCK ....THEY WERE CONSIDERED BY MANY AS UGLY....THE SECOND ATTEMPT WAS A 'D' HANDLE GRIP STOCK...AND ADDED A RUBBER BUTTPLATE ..WHICH WAS BETTER THAN THE PLASTIC NYLON PLATE ON THE NUMBER ONE ATTEMPT...ALSO ANOTHER NYLON PLASTIC UGLE FOREND....THE D HANDLE WAS REFERRED TO AS  'SPORTER STOCK' ....THIS WAS AN IMPROVEMENT POSSIBLY FROM NUMBER ONE EXCEPT IT WAS TOO SHORT OF A STOCK....AND ONCE AGAIN IT WAS UGLY....,,,, BELL & CARLSON WAS A STOCK MANUFACTURING COMPANY AND STARTED MAKING 'D' HANDLE STOCK SETS FOR THE L1A1...THEY HAD A NICER FINISH AND WERE A LITTLE LONGER AND HAD THE RUBBER BUTTPLATE...THEY WERE ON THE PRICEY SIDE...AND ONCE AGAIN ....NOT MANY WANTED THEM....OK HERE IS THE BACKGROUND.....BOTH  C.I.A.  AND THE BELL & CARLSON STOCKS TOOK THE TRIGGER PLUNGER PLATE AND CUT OF THE TAB OFF THE TOP ...THE TAB WAS USED TO STRENGTHEN THE ORIGINAL L1A1 WOOD AND  PEBBLE GRAIN PISTOL GRIPS.....THE TAB INSERTED INTO A SLOT CUT INTO THE BOTTOM OF THE LOWER RECEIVER ...AND PREVENTED THE PISTOL GRIP FROM TWISTING.....SO IF YOU ARE NOT TAKEN BY THE UGLINESS OF THE C.I.A. OR BELL & CARLSON STOCKS AND WANT TO USE THEM ......YOU WILL NEED THIS CUT DOWN ORIG.  PISTOL GRIP TRIGGER PLUNGER PLATE....IN ADDITION TO THIS  PLUNGER PLATE MODIFICATION ....YOU WILL ALSO CUT DOWN THE TRIGGER PLUNGER AND THE TRIGGER PLUNGER SPRING.... IF YOUR THINKING OF INSTALLING  THE CIA STOCK OR THE BELL & CARLSON STOCKS.....ON YOUR FAL....