Now available for the UPRISER Chassis, is the Straight version for the Stock Grip Adapter. - Please note this option is chosen in the dropdown menu along with *Color and *Collapsible Buttstock and Buffer Tube for AR-15 by Rim/Edge*
Upriser Chassis for Ruger PC Carbine Installation Instructions
At a Glance:
- Trigger finger accessible magazine release
- Compatible with virtually all AR Grips, buffer tubes and butt stocks
- Comes with optional flared magwell
- Includes renowned TANDEMKROSS hiveGrip for the AR-15 platform
Rise above the competition with the TANDEMKROSS UPRISER Chassis for the Ruger® PC Carbine®!
The lightweight reinforced polymer UPRISER chassis reduces the overall weight and provides a better balance and feel.
Designed with cross-compatibility in mind, the UPRISER Chassis will accommodate virtually all AR grips (with or without 'beavertail') and mil-spec buffer tubes/stocks!
The UPRISER package includes:
- Extended magazine release
- Flared magwell (hardware included)
- "hiveGrip" for AR-15 (hardware included)
- Stock and grip adapter
- Dowel pin
Trigger finger extended mag release:
Don’t skip a beat! The unique trigger finger actuated magazine release allows for quick and intuitive magazine release. Simply lift your finger off the trigger and press the release for fast and reliable mag changes.
Flared magwell:
The wide, flared and beveled design guides the magazine directly into your magwell, for faster and consistent mag changes.
Defined, ergonomic finger grooves improve hand placement for more accurate, controlled shooting, while the slim, low-profile design ensures an ideal fit for any user. Made from patented impact- and vibration-dampening material, these "hiveGrips" are an ideal upgrade for any AR-15. Designed with a hollow grip, the "hiveGrip" for AR-15 includes a removable O-ring sealed bottom to provide water resistant storage space for tools, extra rounds, or survival items.
*Stock and Grip adapter available in two options:
(Option #1)Angled Stock and grip adapter: The Stock and Grip Adapter is angled at a 12 degree pitch. This is a perfect choice for red dot optics as the design allows for use of a wider assortment of sights. When shouldering the rifle, the sight picture is closer to the bore axis which allows use of an RMR, scope, or red dot without a riser. This creates a comfortable and ergonomic cheek weld, which will result in quick and natural sight acquisition.
(Option #2) Straight Stock and grip adapter: The Stock and Grip Adapter match the more traditional aesthetics of the AR style Buttstock
Don't be left behind! Elevate your performance with the new TANDEMKROSS “UPRISER” Chassis!
This kit is available in Black or Red-
RED option will include:
- RED - Extended Mag release
- RED - Stock and Grip Adaptor
Supported Models- This stock will accommodate 9mm and 40 caliber Ruger® PC Carbine®. Also compatible with Ruger® and Midwest Industries Forend
*Please note* for the Ruger Chassis models, installation will require a second takedown screw. The "Twister" Takedown Knob for Ruger® 10/22® is an excellent replacement for this front takedown screw!
*Know your State and Federal laws before installing on your receiver*
Canadian customers please note: The UPRISER Chassis for the Ruger® PC Carbine™ is considered a frame and the Canadian government requires us to have on file a copy of your Possession and Acquisition License before we can export this part. You will upload a clear, legible scanned image or photo from your phone of your PAL to you EasyExport account.
Don't forget, all TANDEMKROSS products are Made in the USA and come with a LIFETIME guarantee!
IMPORTANT: This product complies with ATF RULING 2009-2
Any person who installs “drop in” replacement parts in or on existing, fully assembled firearms does not manufacture a firearm and does not need to be licensed as a manufacturer under the Gun Control Act. A “drop in” replacement part is one that can be installed in or on an existing, fully assembled firearm without drilling, cutting, or machining. A replacement part, whether factory original or otherwise, has the same design, function, substantially the same dimensions, and does not otherwise affect the manner in which the weapon expels a projectile by the action of an explosive. Any person who is licensed as a dealer, which includes a gunsmith, and who installs “drop in” replacement parts in or on existing, fully assembled firearms as described in this ruling does not need to be licensed as a manufacturer under the Gun Control Act. Any person who is engaged in the business of installing “drop in” replacement parts in or on existing, fully assembled firearms as described in this ruling must be licensed as a dealer, which includes a gunsmith, under the Gun Control Act.
This item is NOT considered an “80% Lower” and Complies with Rule 2021 R-05F
Grandfathers in existing classifications of frames or receivers (to include split frames or receivers) and allows them to be marked in accordance with the existing requirements.
The full definition can be found here: https://www.atf.gov/rules-and-regulations/definition-frame-or-receiver/summaryThis product is NOT a serialized part.
WARNING: This product can expose you to chemicals including chromium, which is known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.
75 Reviews
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Uprizer
I love it. The 12° stock angle makes this thing feel like a rifle. When I shoot it now, just shoulder it and look through the scope that has a see-through mount. No messing around!!
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Love the upriser chassis!
Purchased the model 19100 version of the PC Carbine as that was what was available. While the stock wasn't bad, I really wanted a pistol grip with a much easier stock to adjust length of pull. Sure you could use spacers with the stock stock (sorry bout that), but it requires a tool each time and carrying the shims to add or remove. Also it wasn't the most comfortable for sight picture without a bad posture. The angled upriser solved all of those concerns and also added a significant improvement for magazine swaps with both the mag eject lever above the trigger and the mag well. Now only my skill is the only reason I cannot get to A classification in competitions, but I am happy that TK eliminated the reasons my carbine could have been the cause.
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Love My Upriser Chassis!
I love the Upriser Chassis! I was a little hesitant to buy it at first, because I wasn't sure about the 12 degree stock angle. But I was pleasantly surprised. The pictures don't do it justice. It looks great, even better, in person than the standard straight AR stock. It brings your sight picture to exactly the right position for both iron sights and optics. I use a red dot on a riser. I can comfortably pick up both right away. Try that with a standard straight AR Stock. I also love the beehive grip. I think its more comfortable than any AR grip I've ever used. Well done TandemKross! The expanded mag well is amazing. I amuse myself by trying to deliberately miss it, but it forces the mag in every time. I have only two minor recommendations for improvement, but they are very minor. First, in order to take down the receiver for cleaning you have to remove the grip. This adds a little time, but I can live with it. The second recommendation concerns the extended finger mag release, and ONLY applies to us left-handers. The mag release is only designed for right-handers. If you are a lefty you won't be able to take advantage of it. But if you are a righty, you'll love it. (What can I say, the world is made for right-handers.) Perhaps TandemKross could come out with a workaround. I'd definitely buy it! But the best advice I can give is don't be put off by the 12 degree stock angle like I was. You will be pleasantly surprised.
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Upriser review
Love this thing! Easy install with the help of Bill’s video but it’s super comfortable to shoot and looks aside the angled buffer tube and stock are really not a problem. When you shoulder it your eye lines right up with the site and the extended mag release right at your finger tip works awesome! TK hit another one out of the park with this one.
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UPRISER kit
Very easy build. Improves the looks of an already great little rifle.
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Upriser Stock
This is really what the PC Carbine needed. The ergonomics are great. I especially like how it brings the the sight rail up to eye level. I do not have to bend my neck down into an uncomfortably position to acquire the sights. Being a tri-focal wearer this is a great asset. The installation is straight forward, the online video is easy to understand. It only took about a half hour to complete. I have only one suggestion, that TK would have put the possibility of attaching a two point sling or single point sling disconnect around the end of the chassis. Just ahead of the buffer tube would have been nice. Other than this nit pic I find the Upriser stock a perfect upgrade for this gun. Of course the TK trigger, compensator, sight and other upgrades don't hurt having either.
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Upriser
Love it, fantastic unit, easy to assemble and game changer with the magazine release lever.
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Great product
A great mod to my Ruger PCC. The up riser with fast Mag release, AK stock angle & trigger are just wonderful. Fast target acquisition with the stock, fast mag swaps because of the mag release and flared mag well. The new trigger is nice too. No regrets with these mods! My box came with everything but the trigger I ordered and it was listed on the invoice. Customer Service could not have been any better resolving the issue. I feel good dealing with TK. Will deal with them again. No worries!
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upriser chassis
Super easy to install and made a huge difference in the performance of gun!
