308
-
$6000The RCM #17/36 Deg. Locking Piece is one of the best ways to slow down & tame that 21). Can also be used for HK91/G3 special projects such as suppressors, & heavier than normal loads. This is also the factory correct locking piece for all HK21E's. This can be adapted to many HK custom builds & applications. This locking piece is the lowest degree of any locking piece available in the wide range of HK's locking piece family. The HK German #17 locking piece is no longer in production or available. So get the US made version of it and save big!
- HK G3, 91, PTR
- HK Custom Builds or clones
- HK 21E. series
These are also the best LP to use when using a suppressor on your HK91, G3 style of firearm. -
$6000The #18 LP is the correct locking piece for the G3K build. The locking piece is the timing mechanism that a delayed roller lock firearm uses to tell the firearm when to unlock and cycle. Having the right degree or "timing" is critical in the function and cycling of the HK roller lock firearm such as the G3K.#18 Locking Piece - 50 Degree
-
$16500HK 51K Barrel
100% US RCM Manufactured HK51K CHFBarrel. Made from the exact HK51K barrel specifications & cold hammer forged steel as HK German barrels. Counts as one US for 922R compliance. Perfect for custom builds and HK51K style builds.HK51K CHF Barrel:- 5.3" inches long
- 1:10 twist
- Chambered 7.62 NATO
- 12 flutes in chamber - Just like HK German barrels.
-
Knurled sight ring
-
Splined barrelfor posative lockup ofHKflash hiders
-
Threaded 15 X 1 RH (factory thread pitch)
- 41V45 cold hammer forged (CHF) barrel steel.
-
Nitride Black (same process HK/Sig & Glock use on their barrels and slides.)
-
U.S. Made Barrel counts as one 922 compliant part