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RCM HK STYLE .40 CAL BOLT HEAD ASSEMBLY

HK MP5 40/10 Bolt Head Complete

The RCM Hk Style .40 Bolt Head is the real deal for when its time to replace your out of spec, worn or broken bolt heads or for that custom build. Each bolt head will work and fit on semi or full auto MP5 40,10mm pistol or rifles. Each bolt head is made from ordnance grade steel. Machined and Heat Treated to exact HK Specs.

This offering is the finest US made bolt head available. Each Bolt head comes complete and assembled ready to go:

Extractor US
Extractor spring US
Roller retainer spring German HK
Pair of 8mm standard MP5 40/10 rollers US
Roller retainer pin US
As an added bonus each bolt head counts as 1 US Compliant part. This is simply the finest bolt head HK or otherwise for the money. Made right here in the USA with all of the latest upgrades, material & improvements

RCM HK STYLE LOCKING PIECE #15/65 DEG. 5.56/.223

The #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

RCM BTX 95MM PROTECTIVE CASE

The NEW BTX Case from RCM is designed to protect one of your biggest investments you made in hunting gear. Made with Cordura 1000 Denier in Coyote Brown inside and out. 1/2 Closed Cell Padding between the layers of Cordra will absorb impacts better that open cell, #10 Mil-Spec Zipper to handle the elements without skipping a tooth. Adjustable strap for shoulder carry or by hand. Webbing to allow a secure fit on the packs that also have webbing. Inside pocket for lens cleaning accessories. All hardware is made in the USA. Designed to fit with your Swarovski or other stay on cases.

RCM SR9-T CHF BARREL 5/8-24

RCM acquired a very rare HK SR9 Barrel to reproduce. We improved upon it by making it off a Cold Hammer Forged Barrel, 1:10 Twist. These barrels are top of the line. We stepped it up by including a Recessed Target Crown. Chambered in 7.62 Nato Chamber with 12 Flutes. Nitrided inside and out. Not another barrel out there even comes close to this. Being 19.250 will increase muzzle velocities over 100 ft. per. sec. over a standard 91. The SR9-T has an Industry Standard 5/8-24 Thread along with the Recessed Target Crown for .30 Cal

RCM PRE G3 M/61 BARREL

RCM is releasing a Brand New Barrel for the Pre-G3 HK M/61 Parts Kits that are now available. This Cold Hammer Forged Barrel is made from a Mil-Spec 41v50 Blank, 1:10 Twist, 17.700 long, Nitride inside out. These barrels are top of the line. 7.62 Nato Chambers with 12 flutes. Not another barrel out there even comes close to this.

RCM MP5 “RS” STYLE F/A BOLT GROUP

RCM MP5 Reverse Stretch Bolt Group Complete

Each bolt group incorporates the finest quality US made parts. Making up a new complete bolt group ready to drop in. Ideal to replace out of spec bolt groups or to keep as spares. Each bolt group will work with semi or full auto 9mm’s pistol or rifles. Each bolt group is made with the current and new Action 3 & “F” upgrades and enhanced materials.

Each HK MP5 Reverse Stretch Bolt group includes:

Bolt Head
MP5K 110 degree locking piece
Firing Pin
Firing Pin Spring
MP5K Tungsten Filled Bolt Carrier F/A “F” specs
Reverse Stretch Recoil Assembly, Absolutely the finest recoil assembly available

RCM HK STYLE 33K BARREL

HK 33K Barrel

US RCM Manufactured 33K Barrel. Made from the exact G3K barrel specifications and material BUT in a 5.56 caliber. Direct replacement for your shot out barrel or for that custom HK 33K build. Counts as one US compliance part as well.

G3K CHF Barrel:

12.69 inches long
1:7 twist
Chambered 7.62 NATO
15 X 1 RH threaded barrel
12 flutes in chamber similar to HK German barrels.
Knurled sight ring.
41V45 cold hammer forged (CHF) barrel steel.
Nitride Black (same process Sig Sauer/Glock uses on their barrels.)

RCM HK STYLE MP5 40 LOCKING PIECE, 100 DEGREE

For the MP5 40 or 10mm .40 Platform. Made out of ordnance grade material and heat treated to spec. This is a RCM exclusive. For when you have a finicky gun that has issues with feeding and extraction