Its an old abbreviation for a 51 SBR. A V51 with a stock is much more manageable with the stock, pistol form can be a PITA after a short while of shooting.
Bill
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
HKPRO Forums
1.9M posts
89.4K members
Since 2000
Actually created in 1999 (the original posts from the first database were lost), we are a forum dedicated to and laser-focused on Heckler & Koch firearms, Heckler & Koch accessories and the owners and enthusiasts that love them! Come join the discussion regarding HK pistols, long arms, NFA arms, HK accessories, HK history and trivia and more.