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The Lancer Systems Beretta 1301 Competition Extension Tube should be compatible with the 1301 Competition Pro as well. However, Lancer Systems does not have it listed. I would recommend reaching out to them directly to confirm compatibility. You can find their contact information linked below:
https://lancer-systems.com/contact/
I just got off the phone with Beretta customer service. They said the thread pattern is the same and it should fit!
Yes, they should.
This Lancer Systems Beretta 1301 Competition Extension Tube will only work with the Beretta 1301 Competition shotgun.
The 1301 Beretta will fire 00 buck and birdshot, but not rifled slugs. You would need a cylinder choke to fire all 3 ammunition types.
The listings are added capacity, so the MPN:LSX-8X-BR is a +8 round extension.
No, this is meant specifically for the 1301.
It will depend on your barrel length. The +4 option adds 10.6" in length. Extension clamps are recommended for extension tubes that extend beyond the end of the barrel, so again it will depend on the length of your barrel.
A replacement spring is included.
Lancer says:
"The best way to determine your desired extension is to measure from the end of the threads to the muzzle and compare it with the lengths given on the Beretta extension page on our webstore"
Lengths are listed at
https://lancer-systems.com/awc/product/beretta/
As well, Lancer states "
Lancer Carbon-Fiber 12 Gauge Shotgun Extension Tubes (LSX) are designed to attach to existing shotgun magazine tubes to provide added capacity to the shotgun.
SELECTING THE LSX
There are two basic methods of selecting the right LSX: total length and total capacity. To increase the capacity of the shotgun without having the extension tube extend beyond the muzzle, measure from the front of the shotgun’s handguard to the end of the muzzle.
Machined aluminum components combined with a lightweight, carbon-fiber tube create a lightweight, durable extension to your shotgun. An extra-long spring is included that can be cut to optimize loading. Extension clamps are recommended for extension tubes that extend beyond the end of the barrel."
Mark H.