RCM HK STYLE ROLLER SET, +4 (8.04mm)
$1800
Roller +4 – New – 8.04mm
RCM U.S. Made +4 (8.04 mm) locking roller, The proper roller size is essential for proper bolt gap. Sold as a set
Fits all:
- HK G3, 91 & PTR
- HK 93, 33, 53
- HK MP5, 94
- HK MP5K, SP89, SP5K
- Other 90 series custom builds or clones
4 in stock
Related products
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$18500
- Another quality part from RCM. Machined from a CHF blank. Chambered and fluted 5.56 NATO, 16 flutes like factory. Simply the best barrel for new builds or replacing shot out ones.
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Threaded 15 X 1 Right Hand
- 922r Compliant Counts as 1 US made part
- Cold Hammer Forged Steel
- Built to HK Germany Specifications
- Nitride Finish (Same process that (HK, Sig & Glock use)
- Specifics
- Overall Length -5.3"
- Chambered - 5.56 NATO (.223)
- 1/7 Twist
- Fully Fluted Chamber - HK German Specs
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$23500Beautifully Machined from a CHF blank and Nitrided for long life. 5.56 NATO chamber with 16 flutes just like factory. The finest replacement barrel out there bar none.
- 922R Compliant (Counts as 1 US made part for builds)
- Cold Hammer Forged Steel (proven HK barrel process)
- Built to HK German Specifications
- Nitride Finish
- Specifics
- Overall Length - 16.1 inches
- Chambered - 5.56 NATO (.223)
- 1/7 twist
- Fully Fluted Chamber - To HK German Specifications
Please note: The factory correct length of an HK33 barrel is LESS than 16" we offer the 16.1 length barrel to make it easier for NFA rule and compliance. -
$6000
New US Made #20 Locking Piece - 70 Degree For HK23E
New RCM # 20 70 degree locking piece for HK23E and other custom builds. Made from the finest ordnance grade steel and heat treated to perfection. A perfect spare for your MM23E or HK23E or other custom build HK firearm. -
$6000The #15 LP is the correct locking piece for the HK53 and several other custom build applications. 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 HK53.
#15 Locking Piece - 65 Degree
Perfect for HK53, HK33K & other HK style custom builds




