Yes, it works.
Yes, it works.
Yes, it works.
Yes, it works for a psa 7.5" ar pistol.
Yes, this Presma ambidextrous charging handle for .223/5.56/9mm will work with a .450 Bushmaster upper, as long as it's built on a standard AR-15 platform.
Why It Works:
Charging handles for AR-15 rifles are universal across different calibers that use the AR-15 upper receiver, including .223/5.56, 300 BLK, 9mm, and .450 Bushmaster.
.450 Bushmaster uses a standard AR-15 upper and BCG, just with a different bolt face and barrel.
Things to Consider:
Since .450 Bushmaster has more recoil and gas pressure, you might want a reinforced charging handle to handle the extra stress over time.
The manufacturer does not state where the Presma Ambidextrous Charging Handle 223/5.56 is made. For that information I recommend contacting Presma.
The Presma Ambidextrous Charging Handle is compatible with an AR pattern rifle chambered in 450 Bushmaster.
It can work well with a silencer (suppressor). However, there are a few factors to consider to ensure compatibility and optimal performance when using it in conjunction with a suppressor.
The Presma Ambidextrous Charging Handle 223/5.56 will work with an AR pistol if it is a Mil-Spec Receiver.
The Presma Ambidextrous Charging Handle is Type III, Hard-Coated anodized Aluminum.