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Hammerli Forge H1 1911 22lr 16+1 Magazine Upgrade

hammerli | hammerli h1 | h1 forge | 1911-22 | magazine upgrade | high capacity magazine | follower magazine spring spring retainer | 22lrupgrades | 1911-22 | nictaylor00 | basepad | bumper | magazine extension | 5170500 | 723364229770
 
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This magazine modification is for the Hammerli Forge H1 1911-22LR pistols. With this magazine upgrade you will get additional rounds in the factory 10 and 12 round clips. These modifications are not permanent and easily install in minutes. With the 16rd upgrade you can get 16 rounds in the magazine and one in the chamber for 17 rounds total in the gun. Each upgrade consists of one (1) HiViz follower, one (1) magazine spring, one (1) high capacity aluminum basepad and one (1) hex wrench. Simply remove the factory follower, spring, spring retainer and plastic basepad. Insert the NicTaylor follower, new spring, slide on the aluminum high capacity basebad and finger tighten the set screw with the inlcuded hex wrench. This magazine upgrade is designed to lock the slide open on last shot fired just like the factory magazine.

Please note you will not use the metal pin found in the factory follower. Most people use this pin to aid in loading the magazine. If you have the need for a load assist tool we have two options for you. The first uses the hole in the blue follower to push the follower down. You can find it HERE. The second works more like a traditional magazine loader and can be found HERE
International Orders Click HERE
MSRP: $32.95
Our Price: $24.95
Savings: $8.00


Shipping: Usually Ships in 1 to 2 Business Days
Part #: 200-16BP-HAMR


Basepad Color:


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Installation Instructions RESTRICTIONS
 

Please note that due to varying tolerances in the sheet metal that comprises the magazine, there may be the need to remove a small amount of metal from the tabs of the magazine tube. These tabs are located at the bottom of the magazine tube and are the part that slides into the basepad. Only remove a small amount at a time until your basepad can be slipped on and off to your liking.

1. Remove factory basepad by depressing the spring retainer tab located at the bottom of the basepad. While depressing the spring retainer, slide off the factory basepad. CAUTION! This magazine spring is under tension and can "spring out" of the magazine tube along with other magazine parts.

2. Remove the factory spring. Remove the load assist button on the side of the factory follower. At this point you will be able to remove the factory follower.

3. Insert the HiViz follower and the included magazine spring.

4. Compress the magazine spring into the magazine tube and slide on the High Capacity Basepad. Assure that the spring is in the pocket of the basepad and finger tighten the set screw at the basepad with the included hex wrench.

Video Review on RUMBLE - (copy and paste the link)
  • https://rumble.com/v5rvzqq-hammerli-forge-h1-review.html

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 9 Write a review »

  0 of 0 people found the following review helpful:
 
5 of 5 Couple extra February 5, 2026
Reviewer: Wild Child from West Allis, WI United States  
I have purchased from here before for my mk2. So i bought the Hammerli last bolt hold open which do what they say and just plain and simple work .I have a magazine assist and the aluminum base work perfectly for this too. All around just great. A+++

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  0 of 0 people found the following review helpful:
 
3 of 5 Ordered 2 of these January 19, 2026
Reviewer: Chris Nissen from Sioux Falls, SD United States  
Got 2 of these. One of them works great but other one the spring got all messed up on my 1st trip to the range. That's the reason for the 3 stars. I have not reached out to see if TTS will send me another one. Will update if they do.

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  0 of 0 people found the following review helpful:
 
5 of 5 more boolets January 19, 2026
Reviewer: B.H.  
Add 4 more to your mags. Was easy to swap out and fed everything I put through it.

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  0 of 0 people found the following review helpful:
 
5 of 5 Upgrade in quality and capacity January 14, 2026
Reviewer: DeKelvin Garrett from Killeen, TX United States  
I inserted one of the magazines in standard configuration and the flimsy plastic/rubber bottom tore. The spring shot out and was lost. This upgrade not only increases the capacity by four, but replaces those cheesy, cheap base plates with sturdy aluminum ones

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  0 of 0 people found the following review helpful:
 
5 of 5 Customer Serice Above and Beyound December 7, 2025
Reviewer: Traci Elizabeth from Canton, GA United States  
I love buying from this company. First, their products are superb and simply "work" all the time, every time. And Second, their customer service are "second" to none. There is NO blame game. If you are not satisfied for any reason, the customer is "always" right. Even if it was YOU who ordered the wrong product. That's why I keep coming back and ordering more products year-after-year.

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