For people out there looking to swap the factory adjustable stock on their SULUN Arms TAC-12 this info may help. I have compiled the sources I used and other info that may be of use to owners.
Please feel free to add any experience. Q+A, quality control etc... The more info the merrier.
TAC-12 Field stock install:
-Pull the trigger group (check your shell lift tab while your in there)
-Remove adjustable butt stock depressing the release then pull near the pin / forward part of release while pulling back to remove like some AR stocks.
-Set that gun in either a vice or between your knees and twist, knock, hammer that pistol grip counter clockwise. Dont hammer... Mine was just on extremely well.
-That pistol grip has a threaded nut inside that will hold in on the buffer and not allow you to remove it without removing the buffer tube.
-Take a crescent wrench or a 27mm and crack the buffer tube retaining nut. Now I backed the nut towards the pistol grip, took a silver sharpie and colored an *indicator ring* around the base of reciver/threads to show me how far the recoil assembly was in the receiver. COUNT THE THREADS AND TAKE PICTURES.. YOU will loose all your sharpie marks after a few min of spinning the firearm around.
- My buffer tube was threaded in 10 turns and had a locking compound, *Hint* if yours having troubles turning the buffer out, slide the factory adjustable stock on and use it for leverage to turn.
-Spin the recoil system all the way out of the shotgun
-Now thread the 27mm nut all the way forward/off the buffer
-Pull off the pistol grip
**This is where you use your pics and markings to confirm how far the buffer system was in the receiver**
-Spin the 27mm nut back on the buffer, I placed mine just past the 10 thread so I had a very good idea of where I had removed this from factory position.
-Once buffer assembly threaded in and your at right height tighten the 27mm nut.
-Slide the stock on, mine was tight tight.. Not a bad thing.. Making sure to take note of the stock's retaining block and its "top" marking. Keep that up!
-When threading in the supplied bolt it felt like it barely grabbed the buffer assembly. Just go slow with tightening it down. I did a few threads in and out as if I was dealing with a stripped nut until I was comfortable and 100% sure it was good.
**THE FIELD STOCK is not perfect, I had to remove it once, pull the trigger group, back off the stock and install trigger group prior as the stock wouldnt allow for trigger group installation. Purely alignment issue that was quickly resolved.
One small issue I ran into after I removed the adjustable stock, the 27mm nut I went to back the pistol grip off of the stock. After a few rotations I ran into an resistance that felt familiar. I proceeded by turning the pistol grip clock wise (buffer towards body) as it was when you first back it off and loose to expose the threads. I may be the cause of this if I didn't get enough gunk out of the threads prior. Anyways, the threads were starting to cross thread/strip around the 5th thread so I took a small pick and some brake clean and a very light *wrist turn* with a 3m pad in my hands while gripping the buffer tube and the threaded area.
Cleaned up a lil more..
I am also going to "bump" this up for future reference. When you have the trigger group out your right there. Inspect it. Mine looks to be one that was attended to at factory, not the cleanest but you know what to do.#
For members who are experiencing feeding issues, this is a simple check that is said to be the issue 98% of the time.
If you have a loose pistol grip.
These are just to keep in mind when purchasing. I always handle the firearm prior to purchase and if there are 1 or more in stock I suggest viewing multiple prior to purchase.
F.Y.I.
Few random photos.#
https://postimages.org/
I hope this can help current and some future owners out. We can collectively pile information here instead of cluttering up BBB's Turknelli thread.
TVW
Please feel free to add any experience. Q+A, quality control etc... The more info the merrier.
TAC-12 Field stock install:
-Pull the trigger group (check your shell lift tab while your in there)
-Remove adjustable butt stock depressing the release then pull near the pin / forward part of release while pulling back to remove like some AR stocks.
-Set that gun in either a vice or between your knees and twist, knock, hammer that pistol grip counter clockwise. Dont hammer... Mine was just on extremely well.
-That pistol grip has a threaded nut inside that will hold in on the buffer and not allow you to remove it without removing the buffer tube.
-Take a crescent wrench or a 27mm and crack the buffer tube retaining nut. Now I backed the nut towards the pistol grip, took a silver sharpie and colored an *indicator ring* around the base of reciver/threads to show me how far the recoil assembly was in the receiver. COUNT THE THREADS AND TAKE PICTURES.. YOU will loose all your sharpie marks after a few min of spinning the firearm around.
- My buffer tube was threaded in 10 turns and had a locking compound, *Hint* if yours having troubles turning the buffer out, slide the factory adjustable stock on and use it for leverage to turn.
-Spin the recoil system all the way out of the shotgun
-Now thread the 27mm nut all the way forward/off the buffer
-Pull off the pistol grip
**This is where you use your pics and markings to confirm how far the buffer system was in the receiver**
-Spin the 27mm nut back on the buffer, I placed mine just past the 10 thread so I had a very good idea of where I had removed this from factory position.
-Once buffer assembly threaded in and your at right height tighten the 27mm nut.
-Slide the stock on, mine was tight tight.. Not a bad thing.. Making sure to take note of the stock's retaining block and its "top" marking. Keep that up!
-When threading in the supplied bolt it felt like it barely grabbed the buffer assembly. Just go slow with tightening it down. I did a few threads in and out as if I was dealing with a stripped nut until I was comfortable and 100% sure it was good.
**THE FIELD STOCK is not perfect, I had to remove it once, pull the trigger group, back off the stock and install trigger group prior as the stock wouldnt allow for trigger group installation. Purely alignment issue that was quickly resolved.
One small issue I ran into after I removed the adjustable stock, the 27mm nut I went to back the pistol grip off of the stock. After a few rotations I ran into an resistance that felt familiar. I proceeded by turning the pistol grip clock wise (buffer towards body) as it was when you first back it off and loose to expose the threads. I may be the cause of this if I didn't get enough gunk out of the threads prior. Anyways, the threads were starting to cross thread/strip around the 5th thread so I took a small pick and some brake clean and a very light *wrist turn* with a 3m pad in my hands while gripping the buffer tube and the threaded area.
Cleaned up a lil more..
I am also going to "bump" this up for future reference. When you have the trigger group out your right there. Inspect it. Mine looks to be one that was attended to at factory, not the cleanest but you know what to do.#
For members who are experiencing feeding issues, this is a simple check that is said to be the issue 98% of the time.
If you have a loose pistol grip.
These are just to keep in mind when purchasing. I always handle the firearm prior to purchase and if there are 1 or more in stock I suggest viewing multiple prior to purchase.
F.Y.I.
Few random photos.#
https://postimages.org/I hope this can help current and some future owners out. We can collectively pile information here instead of cluttering up BBB's Turknelli thread.
TVW
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