I bought a PRB50 nailer but it didn't have a nose stop or depth adjuster. That was totally unacceptable. I returned it for the PRB50Q which has these two features. I used the gun all day and had no issues with misfires or jams. The weapon's weight and balance are near perfect. Great product and great price. I really wish Freeman would supply a suitable case even if it added $5 or $10 to the price. Nice gun with 7 year guarantee. Good luck registering online. I have tried in vain to register my two nailers. Maybe their server, but I finally gave up.