HKP Extended 4 Prong Flash Hider - Threaded 15x1

This fits any threaded 15 X 1 RH twist HK barrel. The overall length is 4.37 inches.These are the perfect length of the G3K and HK33K style builds as they will yield a 16.1" overall barrel length when installed. Each is machined from ordnance grade steel and finished in melonite.

Compatible With:

• G3K
• 33K
• G36K (although will not give you the OVERALL rifle length needed)
• Other custom HK Builds
• A must have to meet the legal 16" requirement when using "K" length barrels.