TWL Large/Large Textured Frame Built

(12 reviews)

Current Stock:

Out of stock

Out of Stock
When we first launched the original Timberwolf frame, one of the first questions was “when will it be available in .45 ACP or 10mm?” That time is now, because we’ve revamped and upgraded the design to bring you the Timberwolf Large. The first thing you’ll notice is that the TWL fits in your hand like a much smaller pistol - in fact we measured the grip circumference of the most popular factory 9mm service pistol, and the Timberwolf Large was only .007" larger. That’s only the width of a couple of human hairs, giving you real .45 ACP or 10mm firepower in a 9mm sized package.

The grip length accept G20/G21 Gen3 and Gen4 slides, as well as G40 slides. The TWL uses G20/G21 magazines. When using a Gen4 slide you simply remove the installed adapter in the dust cover area of the frame. Using Gen3 slides you leave the adapter in place to fill the gap between the slide and dust cover. 

The Timberwolf Large is available in multiple configurations, all of which include the dust cover adapter, removable magazine well, and interchangeable backstraps. (TWL & TWF backstraps are interchangeable)

No matter what your shooting goal is, the Timberwolf Large will fit your needs. Whether you want a gun for backwoods carry, a longslide for hunting, a slim and easy to carry .45 ACP for personal protection, or just want to build the coolest gun at the range, the Timberwolf Large can make your dreams come true. 

Years in the making, the Timberwolf Large is here. The frame game will never be the same.

Looking to add a custom laser engraved texture to your smooth frame? See here.

Assembled frames come with the following parts installed.

If purchasing a bare frame with parts kit the same parts are used but not installed, if you are using your own parts please note most parts are GEN3 parts except the magazine catch and trigger housing which requires a GEN4 style part. 

Kit Includes:


Trigger parts:



*When swapping mag catch directions you must REMOVE the magazine catch spring, do NOT just pry the spring around the mag catch, frame damage will occur.  

*Not compatible with G41 slides

*Does not work with SiderLock trigger safeties

*When checking out please put the name, city, state, and phone number of the FFL you want the frame shipped to in the comments section. 

Must ship to FFL

If a frame, slide and barrel are on an order the 10% excise tax will be added by our CS team.

FFL items are not returnable.

(12 reviews) Write a Review
  • 5
    TWL for G40

    Posted by Garrett N Knox on 9th Apr 2024

    Functions as well as the stock frame. No issues. Much more comfortable than stock. Well priced, LOVE it.

  • 5
    Meaty Hands

    Posted by Dale Otterbacher on 25th Mar 2024

    The slide is great and feels wonderful in the hand. I have big meaty hands and my hand rides up on these grips and produces cuts where the slide meets the flesh. I am looking for beavertail insert to keep my mutts out of harms way. I just wish Lone Wolf sold beavertail for this model. Don't get me wrong, these are great grips and most will not have a problem with them.

  • 5
    Exactly what I wanted.

    Posted by Speedyfreek on 18th Oct 2023

    I’m very pleased with my purchase. Quick delivery, quality product, and great price! I love Glocks and don’t have a problem with the OEM frame. I also love my 1911’s too so it’s nice to have a Glock that feels like a 1911. Will buy from Lone Wolf again!

  • 5

    Posted by dalowrider on 16th Oct 2023

    I was just browsing when I saw this item on the website. Years ago when I bought my G20 which was my first 10mm I got in a big hurry and did not get one with the SF frame. I regretted having done that many times though I still loved this pistol. This Lone Wolf frame seemed to have the potential to be a fix all for the things I didn't love about my G20. Indeed it is! It works so much better for me all around I'm amazed and totally pleased. I put Talon grips on it and it has worn a Lone Wolf barrel for a long time. For me it was a perfect solution. I have only fired a hundred rounds or so through it since I changed frames but I shoot it better than before and it feels so much better in my hand. In the end the measure of a pistol is just that ... what it feels like in your hand. I would have added a phono but there isn't a place provided to do that.

  • 5
    Master Glock Armorer Support

    Posted by Karl Erdmann on 28th Aug 2023

    Item arrived quickly, the box was beat up. It has a comfortable grip. I had a little troubleshooting with slides, as expected, and their customer support rep Eric provided certified glock armorer level support, and apparently works close to their engineers/gunsmiths. They sent an OEM part that helped solve my issue, and went above and beyond by providing barrel compatibility documentation. Best support in the industry for one of the most innovative, time tested manufacturers.

  • 5

    Posted by DONNIE on 20th Aug 2023

    Outstanding frame. Much better feel than factory grip.

  • 5

    Posted by Dave Michalczyk on 15th Jun 2023

    Textured undercut frame with optional mag well, extended slide stop, 3.5 connector, Gen 4 mag release, choice of backstraps and adjustable trigger overtravel stop all included. Possibly the smallest diameter grip of any double stack 45 on the market, and all for $150! No brainer, extremely satisfied!

  • 5
    Love it. Now I just need more G20 uppers

    Posted by Cash H on 5th Jun 2023

    I absolutely love this frame. They go out of stock all the time, but I will never shoot another stock Glock 20 frame. This is my carry pistol in the backwoods and this frame has reduced my 15 yard group size by 40%. The frame fits my hands so much better and eliminates the finger grooves from the gen 3 or gen 4. Would definitely purchase again. Way more comfortable and controllable. @LoneWolf, why can’t you keep these in stock if the bare frames are in stock?? Or sell the bare frame plus parts kit at a discount when the built frame is out of stock?

  • 5
    Lone Wolf Large Lower for Glock 20

    Posted by Christopher Fleming on 20th Mar 2023

    So I have not taken this build to the range and fired it yet. It’s a Gen3 G20 upper on the LW large lower. Feels much better than stock lower and looks great. Trigger is a litter better on front side, not quite as good reset audible and feel as stock. Overall detail, quality, fit and finish are excellent. Fits perfectly with the gen 3 G20 upper.

  • 5

    Posted by Simon Willmore on 12th Mar 2023

    Lone wolf customer services by jasonr is consistently excellent even though my two assembled large TWL textured frames (for LW 20L and Glock 21.4 slides) are almost perfect so I have no need of customer support for them. I have to nit pick to find following two criticisms: 1) the gen3/gen4 adaptor is made of semi-flexible plastic/polymer and it can be awkward to re-install after removal and 2) the adjustable travel screw was not pre-installed just shipped in plastic bag