The CMMG conversion is simply a kit that allows you to convert your AR-15 carbine to a .22 LR version. Simply put, instead of expensive 5.56 NATO ammunition, you can use cheaper .22 LR ammo. Sounds good, right?
Why would you do this? There are several reasons, but the most important is cost savings. .22 LR ammunition is much cheaper than 5.56 NATO, so you can train more for less money. In addition, the reduced recoil and noise make training more comfortable, especially for beginner shooters. And let's face it, shooting cans with a .22 is just plain fun!
What is a CMMG conversion and how does it work?
The CMMG conversion is essentially replacing the bolt and magazine in your AR-15. The kit includes a special bolt that is adapted to .22 LR ammunition, and a dedicated magazine. Installation is very simple and takes literally a moment - you remove the standard bolt, insert the CMMG bolt, insert the .22 LR magazine and you're done. You don't need any special tools or skills.
After installing the conversion, your AR-15 works exactly the same as before, only it shoots a different caliber. The recoil is minimal, and the noise is much lower. You can practice accuracy, trigger control and other shooting techniques without straining your budget too much.
Advantages of using a CMMG conversion
- Cost savings: .22 LR ammunition is much cheaper than 5.56 NATO.
- Comfort: Less recoil and noise, ideal for beginners and training.
- Versatility: Possibility to practice various shooting skills.
- Simplicity: Easy installation and operation.
- Availability: Wide range of accessories and spare parts.
Which AR-15 carbines is the CMMG conversion compatible with?
The CMMG conversion is compatible with most AR-15 carbines that meet the Mil-Spec specification. This means that if your AR-15 was manufactured according to military standards, the conversion should fit without any problems. However, it is worth making sure that the given conversion model is intended for your specific carbine.
There are situations in which it is necessary to adapt the conversion to non-standard AR-15 models. In this case, it is worth consulting a specialist or checking the information on the manufacturer's website.
How to care for the CMMG conversion?
Maintaining the CMMG conversion is similar to caring for a standard AR-15 bolt. After each use, the bolt and magazine should be cleaned of carbon deposits and dirt. Lubricating moving parts with special gun oil will ensure smooth operation and extend the life of the conversion. Remember that regular cleaning is essential!
It is also worth getting a dry fire snap cap, which protects the firing pin during dry fire practice. Dry fire with the CMMG conversion is a great way to improve your shooting technique without using ammunition.
CMMG conversion and legal regulations
Possessing and using a CMMG conversion is legal in Poland, provided that you have a firearms license for sports or collection purposes. The conversion itself is not a weapon, but only an element that changes the caliber of the weapon. However, you should remember to follow safety rules and store the conversion properly.
Summary
The CMMG conversion is a great way to train shooting cheaply and effectively using your AR-15 carbine. Easy installation, wide availability and numerous advantages make it a popular choice among sports and recreational shooters.
Frequently asked questions
Is the CMMG .22LR conversion difficult to install?
Installing the CMMG .22LR conversion is very simple and does not require any special tools. You simply replace the bolt and magazine.
Do I need special magazines for the CMMG conversion?
Yes, for the CMMG .22LR conversion you need dedicated .22LR ammunition magazines, which are included in the kit or available separately.
Does the CMMG conversion fit every AR-15 carbine?
The CMMG conversion fits most AR-15 carbines that comply with the Mil-Spec specification. However, it is worth checking compatibility with a specific model.
Can I use the CMMG conversion on an outdoor shooting range?
Yes, you can use the CMMG conversion on an outdoor shooting range, provided that the shooting range regulations allow it and you follow safety rules.
Does the CMMG conversion affect the accuracy of my AR-15?
The CMMG conversion may affect accuracy, because .22LR ammunition has different ballistic parameters than 5.56 NATO. However, usually the differences are not very large.
How often should I clean the CMMG conversion?
The CMMG conversion should be cleaned regularly, after each use, to ensure its proper functioning and extend its life.
Is the CMMG conversion legal in Poland?
Yes, possessing and using a CMMG conversion is legal in Poland, provided that you have a firearms license.
Can I use .22LR HV (High Velocity) ammunition with the CMMG conversion?
It is recommended to use standard .22LR ammunition with the CMMG conversion. HV ammunition may cause faster wear of some components.
Where to buy a CMMG .22LR conversion for AR-15?
You can buy the CMMG .22LR conversion in gun and shooting accessory stores, both brick-and-mortar and online.







