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benelli m4 collapsible


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Hold the unlock button in while doing the install. 
 

The stock should install onto the receiver extension at about 45 degrees rotated to the left. The stock should slide on, then stop. Rotate the stock 90 degrees to the right until the stock stops. Now you should be able to slide the stock up and down the receiver extension assuming you have a 3 position receiver extension. If you only have a one position extension, the stock will only pull out a short ways, then rotate 45 degrees to the left. 

Think of the adjustment notches as gears in a manual transmission. 

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Can push button and pull it back straight that’s the problem .my other m4s go they way you say .Like I said holding button you can pull off the whole way .While holding button in .Gun had three extensions slots 

Edited by rubicon20032003
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Can you post pictures of the receiver extension? Are the steel pins present in the collapsible stock? 

 

If you have another M4, try installing the stock on it to see if it functions correctly. 

Photo for reference. Note the steel pin just to the left of the unlock button.

0wN3nNv.jpg

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9 minutes ago, StrangerDanger said:

Can you post pictures of the receiver extension? Are the steel pins present in the collapsible stock? 

 

If you have another M4, try installing the stock on it to see if it functions correctly. 

Photo for reference. Note the steel pin just to the left of the unlock button.

0wN3nNv.jpg

Nope no steel pin there .there’s a pin in top .I took out B7F598E2-E591-44CD-8D02-B6D08127922A.thumb.jpeg.3c0690ef00239f500bd924e2209ada8b.jpeg

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It appears your stock came from the original M1014 1-2500 run. Those old stocks had Phillips head screws that held the cheek riser in place. The newer production use allen head screws. 
 

 Be careful not to loose the lock washers that hold the cheek riser in place. 

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