RN-50 FAQs

Is the RN-50 an AR-15 upper receiver/ will the RN-50 fit on an AR-15 lower receiver?

No. The RN-50 is a stand alone rifle that is not compatible with any AR-15 receiver or lower. Although, there are many parts that are compatible with AR-15 parts.


What parts on the RN-50 can be replaced with aftermarket AR-15 parts?

Stocks: The RN-50 accepts AR-15 style stocks as well as our own.

Pistol Grips: The RN-50 accepts most AR-15 style pistol grips.

Trigger Group Parts: Trigger groups parts are nearly all standard AR-15 trigger parts, with the most notable exception being the hammer. Because of this, while most AR-15 trigger kits can be installed on the RN-50, the drop in kits that include the trigger, hammer, and springs all as one piece are not compatible.


What height scope rings should I use? 

Because of the already raised scope mount/rail, low rings are definitely the best choice for the vast majority of shooters and will still accommodate scopes with large objectives.


How long does it take to load?

It is as simple as breaking open the rifle, unscrewing the breech cap, inserting a round and screwing it shut. With a little bit of practice, it is reasonable to be able to load and fire 3-4 shots in 1 minute. 


Can the RN-50 be used with a suppressor?

Yes. However, when your muzzle brake is installed at the factory it has red loctite applied to it. This makes it extremely difficult for a shooter to remove it themselves. If you intend on suppressing your RN-50, consider asking for the red loctite to be replaced with blue at the time of order. If you already have an RN-50 with loctite on the muzzle brake, email us at info@serbu.com or give us a call at 813-243-8899; we can walk you through the process. The threads on the muzzle are 1.00 - 14.