Built 2 nearly identical guns simultaneously (His and hers) using TK Manticore X Lowers, TK Comet 10" Barrels, TK Forends, Tactical Innovations Elite 22LC receivers (Left side charging handle (Sorry TK, I couldn't wait any longer for the ADX)), Pike Arms Match Grade Bolts, TK Hive Grips, SB Tactical Braces, Dead Air Mask Suppressors, Strike Industries MLOK Link Curved Fore Grips and Vortex SPARC Solar Red Dots. Undoubtedly the most expensive 10/22's I have ever built. Both guns are nearly identical except the wife prefers her glass without a co-witness riser and slightly closer to her face. Each gun weighed in at exactly 3lbs including suppressors, braces and optics but not including a magazine. Assembly was very easy and I admit my skills are very limited. I am a YouTube gunsmith meaning I can't build anything without YouTube. Luckily TK has made amazing videos on how to assemble anything and everything they have. It took me about an hour to assemble both guns but after assembling the first gun, the second only took me about 15-20 minutes. You may need a rubber mallet and a proper sized punch to hammer in the receiver pins. After assembling the guns, I loaded up a couple BX25 magazines and manually cycled ammo through the guns. I had several failure to feeds with both CCI Standard Velocity and Mini Mags using BX25 and 10 round mags. More FTF's in one of the guns than the other which made me slightly concerned however, at the range, both guns functioned flawlessly. This lower comes with everything you will need to assemble it to the receiver. It comes with the receiver pins and bolt buffer pin. The description stated that it comes with the Shock Block Bolt Buffer but it did not. It came with a metal pin that I am grateful for. More on that later. I had Pike Arms Red Bolt Buffers which I assume is made from Polyurethane so I installed those instead of the pins that came with this lower and that turned out to be a mistake. This lower also did not come with the TK Hivegrip pistol grip and for some reason I thought it did so I had to order that separately and temporarily installed Magpul MOE grips. Assembling a complete gun from scratch, the only additional hardware I needed was V-Blocks and V-Block screws. At the range, these guns operated amazing and we experienced zero FTF's using CCI Standard Velocity and Mini Mags. At some point while shooting, the action made a noticeably different noise. More like a "Clunk". Then I noticed the Pike Arms Red Bolt Buffer I had installed had worked its way out of the receiver. I suppose that firing suppressed was creating excess back pressure and the consistent contact between the bolt and the bolt buffer caused the polyurethane bolt buffer to work its way out of the receiver without a chassis to hold it in. Using these types of bolt buffers will probably work fine in any other traditional setup that uses a 10/22 chassis but doesn't seem to work well with the Manticore X Lower. After returning home, I removed the Pike Arms Bolt Buffers and installed the Bolt Buffer pins that came with the TK Lowers. I was amazed at the crisp trigger pull set by TK and found no reason to adjust the trigger. The lack of a magazine well takes a little getting used to and I assume it is to make changing 10 round magazines used in competition much easier because you can easily grasp the magazine however, I found it sometimes difficult to lock a BX25 magazine into position. The picatinny rail stock adapter can be set to either straight back or at an angle. The magazine quick release operated differently from my other quick releases I have put on other 10/22's but is easy to use. I found it works best when used like an extended and improved Ruger OEM magazine release similar to the AK or H&K mag release. It operates in both directions and can also be activated with your index/trigger finger. The ambi safety is fantastic but has a function I have never noticed in other 10/22's. After emptying a magazine, I put the gun in Safe, removed the magazine and attempted to pull the bolt to the rear but the bolt was completely locked forward. I assumed it had seized somehow and failed to eject the last round but after putting the gun back in Fire, the bolt easily slid to the rear and the gun was clear. It was not a failure to eject. The bolt was just locked forward when I put the gun in Safe. Later it happened to my wife and I got to impress her by showing her all she needed to do was put the weapon in safe. Does this happen in other 10/22's or is this unique to the Manticore X? The only improvement I can think of to make this a better product is to perhaps utilize a +25% harder spring for the magazine catch like the one made by Kidd that significantly improves magazine wobble for larger magazines. Perhaps this lower already utilizes a stiffer spring for the magazine catch that is not stated in the specifications or perhaps TK has already conducted R&D using a stiffer spring and determined to leave it up to the end user to modify based on user preference. I mostly use high capacity magazines such as the BX25 or GRG 110 round drums so I prefer an improved magazine catch but this may also make it more difficult to insert a 10 round magazine. Regardless, I did not have any problems with the magazine catch that comes with the TK Manticore. Tomorrow my Kidd spring arrives. I'll install it and see if it's an improvement.

I bought the Mantacore X whole kit. It was assembled today. have super impressed with everything. The trigger is amazing. It paired up really nice with my tactical innovations left side charging receiver. The stock is great. I really like it. It’s unique weapon. I look forward to shooting it. I’m having trouble deciding what optic to put on it and yes, it’s an SBR Paired with a 10 inch kidd Barrel. The Kidd Barrel was a little bit tight, fitting it into the painted receiver.

I love this lower, it’s easy to install and works extremely well, the adjustable trigger is a nice touch, I personally set mine to the lowest and it’s as fast as you can pull it, I ran about 500 rounds through it after installing it and had maybe 5 jams total while before it was a decently regular occurrence, just an all around great addition to your plinker

Love it easy install and works as it should.

I installed this with a tactical Solutions upper and Briley lightweight barrel. As expected, the trigger break is crisp with minimal pre travel and short reset. What I really like is the Buttstock options and added pistol grip. I have no negatives.

This set up with the stock and forend make this setup an absolutely awesome race platform .

I ordered the Manticore X lower to make it a part of a steel challenge rifle. The upper has a Tactical solutions 10/22 barrel and a C-more red dot sight. I wanted to wait until I got a chance to shoot it and sight it in. Took it today to our range and after two magazines, I had one big hole (dead center) at 15 yards. I wanted a light weight rifle to shoot steel challenge. It also must be reliable. This package will fit both requirements. As always, you can expect the very best in products and service from Tandemkross. Thanks folks!

I purchased the Manticore X with the bundle pack mostly for its minimalism and light weight. Choosing a X Ring barrel, 16" for this unit. Primary Arms Cyclops SLX 1x prism scope rides on top. Extremely light. Living in the wilds of Alaska where you always carry a bear gun when out and about in the woods. Having a 22 that's so light and accurate is a great benefit. Rabbits are on a comeback cycle, everywhere you go you will find them. The Manticore X is very well thought out. More features built in than most 22's. Love the two-way mag release, and the bolt stop. The trigger is one of the best out there. Plus the cool factor of the Manticore X is obvious. A fantastic addition to my collection.

So easy to install, as long as you have the TK aftermarket safety, as the side walls are too stiff to allow the factory safety clearance.