Complex sentence: The Model 1710 HB Stainless Steel Barrel 150 year Anniversary was produced in a small batch (150 unites) by Anschutz in 2006, celebrating the 150 year anniversary of their company.
Split into simpler sentences: The Model 1710 HB Stainless Steel Barrel 150 year Anniversary was produced in a small batch (150 unites) by Anschutz in 2006. They were produced to commemorate the 150 year anniversary of their company.