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Posted: 3/22/2014 4:35:24 PM EDT
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When installing a magpul ASAP or a buffer tube/lower receiver extension. Do you guys cut the detent spring or just don't use the detent pin??? I just can't do it. Is it safe to cut about 1/4" off the spring ?
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Should not have a need to cut it... unless you are installing the set screw mod.
Are you saying you can't compress the spring with the end plate? I mean, it will try and bow on you naturally. Just be patient and use your finger as a guide and the ASAP/end plate to keep it down until you get the castle nut hand tight... |
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I'm just having such a hard time.
http://i43.photobucket.com/albums/e382/SlavO1693/Mobile%20Uploads/image_zps7b6b724c.jpg |
Check your springs and detent's again... The scale of picture would seem you are correct and just have to compress that spring with the ASAP plate(hard to say with the scale). Although I am not sure why you have 3 of what seem to be the same spring. One in the hole and 2 more laying there... Also does it seem as though the detent is going all the way down to the takedown pin? Maybe it's getting hung up? |
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Quoted:
Thanks for the help. I order extra parts cause I f up stuff always I had to cut 1/4" off the spring only way I could get it in... Maybe this is a day late and a dollar short, but attend to it: - when installing the receiver extension (buffer tube), run the castle nut all the way back on the threads; - turn the RE in until it engages the buffer retaining pin, then a half-turn more; this ensures the pin is captured by the RE; - with the RE about 30 degrees over-rotated, insert the takedown pin detent spring and press it forward into the receiver well; - turn the RE back enough to line up the end plate, and capture the spring with the end plate; press it forward until the spring is fully-retained in the well; - align the receiver end plate while holding it so as to retain the takedown detent spring; - run the castle nut forward far enough to retain the end plate, but not so far as to prevent installing the ASAP's locating bar; - using forceps or needle-nose pliers, insert the locating bar into the notch and align the ASAP's end plate; - while retaining the latch plate against the spring pressure of the takedown pin detent spring, run the castle nut down snug; - confirm that the takedown pin detent spring and ASAP latch plate locating bar are retained correctly and tighten the castle nut; - confirm function - stake the receiver end plate to the castle nut per your preference ASAP is the most frustrating and difficult install of anything I've tried on an AR, so don't give up; it's small parts and critical alignment, and things tend to go awry, but cutting the TD detent spring is an indication that you've been defeated by an inanimate object, so make wood and get it done right. 
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Check to see that you only have one detent in there. From the pic, the spring is sticking out too far, which will look this way if you have two detents in there.
CY6 Greg Sullivan "Sully" SLR15 Rifles TheDefensiveEdge.com (763) 712-0123 |
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Thanks guys. Yes there was only 1 detent pin in there. The castle nut was all the way back on the threads/tube .. I need help I'm stopping on my way home to get a vise and a magazine block and I'll try this again Watching some off utube vids out there looks like my spring is way longer then most. Maybe I got the wrong spring or just maybe there's two detent pins in there. ? When i take the spring out then the detent pin should the take down pin just come right out. I think it should and my didn't starting to think my dumb ass put two pins in there now. I Fen hope that's what I did . Thanks guys your awesome Thanks very much for your time.
At the range yesterday 80 rounds and the pin was ok never walked out. Anyway thanks very much. |
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http://i43.photobucket.com/albums/e382/SlavO1693/Mobile%20Uploads/image_zps94575319.jpg
Only had 1 pin in the lower ... Going to try again |
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