Semi Auto Firearms - MG42 Semi Auto - MG42 Semi Auto Bolt Parts - BRP CORP

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Reference Drawings (PDF)

Manual (PDF)

Weapons Guild Step by Step Build with BRP Receiver

WW2 Waffenmeister Handbook

MG42 SA Firing Pin Timing

MG42 SA Bolt and Buffer Setup

Second Pattern Bolt with Removable Rear Extension (machined)

First Pattern Bolt

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sku: 4222-1a3

BRP Second Pattern Semi Auto Bolt Assembly with Removable Rear Extension

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Now: $450.00

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sku: 4222-1a3-Kit

BRP Second Pattern Semi Auto Bolt Assembly with Removable Rear Extension (WITHOUT HEAD)

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Now: $300.00

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sku: 4222-1a3Rear

Removable Rear Extension for BRP Second Pattern Bolt

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Now: $65.00

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sku: 42BC10

MG42 Booster Cone

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Was: $60.00

Now: $50.00

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sku: 42saej-2

MG42 Semi-Auto Ejector Bar - improved full round rear

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Now: $27.50

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sku: MG3-SR and piston

MG-3 Short Recoil/Recuperator Assembly with Newly Made Front Piston Assembly (screws not included)

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Now: $120.00

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sku: MG3P-RSF

MG3 Recuperator Front Recuperator Spring

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Now: $8.25

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sku: M42P-RSF

MG-42/Yugo 53 Recuperator Front Recuperator Spring

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Now: $8.25

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sku: MG42-3-SR-Front Piston

MG-42/Yugo 53/MG3 Recuperator Front Piston

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Now: $16.25

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sku: MG3-SR-Front Pin

MG-3 Recuperator Front Piston Pin

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Now: $6.25

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sku: MG3-SR - USED

MG-3 Short Recoil/Recuperator Assembly (screws, front piston, and front spring not included)

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Now: $95.00

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sku: xmg-SD

XMG and MG42 Semi Bolt Hold Open Block

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Now: $15.00

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sku: 42bbl308w

MG42 .308 Winchester Barrel - CHROME LINED

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Now: $495.00

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sku: 42bbl762-42-59

MG42-59 Barrel (7.62 NATO) CHROME LINED

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Now: $495.00

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sku: 42-762spacer

MG42 308 Tray Spacer (7.62 NATO)

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Now: $30.00

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sku: 42bbl762

MG42 7.62 NATO Barrel - CHROME LINED

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Now: $495.00

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sku: 42213-N

Newly Made MG42 Semi-Auto Bolt Wedge Drilled for Semi-Auto Firing Pin (Wedge ONLY)

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Now: $49.50

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sku: 42-Brass Catcher-LG

MG-42/53 Brass Catcher - Low Grade Condition

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Now: $35.00

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sku: 42219-roller only

MG42 Semi-Auto Bolt Roller Only

MSRP:

Now: $11.50

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sku: 4224RS

Repair Piece for BRP Second Pattern Semi Auto Bolt

MSRP:

Now: $26.50

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sku: 42219-roller

MG42 Semi-Auto Bolt Roller, Support Shim, and Screw

MSRP:

Now: $14.50

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sku: 4229-Rear

MG-42/53/3 REAR Short Recoil/Recuperator Screw Set: (Rear Only)

MSRP:

Now: $12.00

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sku: 4229-Front

MG-42/53/3 FRONT Short Recoil/Recuperator Screw Set: (Front Only)

MSRP:

Now: $20.00

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sku: 42219-P

MG42 Semi-Auto Bolt Rear Post Only

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Now: $28.50

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sku: m42broken-tool

MG34 - MG42 - M53 Broken Shell Tool

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Now: $19.50

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sku: 4221-spring

MG42 Semi-Auto Firing Pin FRONT SPRING

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Now: $1.20

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sku: 11272013-03

MG-42/53 Brass Catcher - Good Condition

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Now: $50.00

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MG42/53 Extractor Removal Tool - Minor Surface Blemishes

MSRP:

Now: $28.25

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sku: 42217-2

MG42 Semi-Auto Firing Pin (Second Pattern)

MSRP:

Now: $30.00

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sku: 42221

MG42 Bolt Charging Piece

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Now: $11.75

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sku: 42215-1

Semi Auto Bolt Kit (first pattern)

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Now: $155.00

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sku: 42220

MG42 Semi-Auto Bolt Extension

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Now: $45.00

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sku: 42219

MG42 Semi-Auto Bolt Rear Post Assembly

MSRP:

Now: $40.00

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sku: 42218

MG42 Semi-Auto Firing Pin Support Bushing

MSRP:

Now: $5.85

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sku: 42217

MG42 Semi-Auto Firing Pin (First Pattern)

MSRP:

Now: $30.00

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sku: 42216

MG42 Semi-Auto Mainspring - Made with Black Oxide Protective Finish

MSRP:

Now: $20.00

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sku: 42214

MG42 Semi-Auto Bolt Blocker

MSRP:

Now: $26.75

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sku: 42213

MG42 Semi-Auto Bolt Wedge Drilled for Semi-Auto Firing Pin (Wedge ONLY)

MSRP:

Now: $49.50

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sku: 4250

MG42 Ratchet Plate

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Now: $50.00

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sku: 4229

MG-42/53/3 Short Recoil/Recuperator Screw Set: Front Post, Rear Post and 2 nuts (new production)

MSRP:

Now: $28.50

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sku: 4218-EjectorBar-Yugo

MG42/53 Ejector Bar - spoon - Yugo (original)

MSRP:

Now: $6.50

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sku: mg42boltcarrier

MG42-M53 Bolt Carrier - YUGO

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Now: $22.50

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sku: 4222-1a3

BRP Second Pattern Semi Auto Bolt Assembly with Removable Rear Extension

BRP Semi Auto Bolt Assembly. This is updated version is similar to the previous version with the following added features: Built-In Hammer Overtravel Stop Removable Rear Extension The ejector and firing pin are unchanged from the...

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Now: $450.00
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sku: 4222-1a3-Kit

BRP Second Pattern Semi Auto Bolt Assembly with Removable Rear Extension (WITHOUT HEAD)

----------------------------------------------- BRP Semi Auto Bolt Assembly less original bolt head and drilled striker / firing pin wedge. Also includes mainspring. This is updated version is similar to the previous version with the following added...

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Now: $300.00
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sku: 4222-1a3Rear

Removable Rear Extension for BRP Second Pattern Bolt

For BRP Semi Auto Bolt Assembly. Includes: Removable Rear Extension Mounting Roll Pins MG42 SA Firing Pin Timing MG42 SA Bolt and Buffer Setup

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Now: $65.00
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sku: 42BC10

MG42 Booster Cone

Newly made item made form stainless steel. Copied from WW2 pattern with 10mm opening. These can be drilled to larger sizes to reduce pressure. Booster Reference Chart

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Was: $60.00

Now: $50.00
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sku: 42saej-2

MG42 Semi-Auto Ejector Bar - improved full round rear

MG42 Semi-Auto Ejector Bar (Second pattern Rev B) This is full round in the rear for better buffer impact during ejection. Unlike the previous version, the retaining pin must be removed to remove the ejector bar. For normal service,...

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Now: $27.50
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sku: MG3-SR and piston

MG-3 Short Recoil/Recuperator Assembly with Newly Made Front Piston Assembly (screws not included)

Original Items Used - Good Condition Generally as shown Includes original recuperator Body with inner spring stack. MG3 pattern Includes Newly Made Font Piston with Spring and Rod Mounting Screws Not Included

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Now: $120.00
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sku: MG3P-RSF

MG3 Recuperator Front Recuperator Spring

Newly Made Item Round wire pattern but interchangeable with braided wire patterns as well. Protective Black Oxide Finish This a copy of the front recuperator piston spring for the German MG3. The overall length is 100mm and cannot be used with...

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Now: $8.25
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sku: M42P-RSF

MG-42/Yugo 53 Recuperator Front Recuperator Spring

Newly Made Item Round wire pattern but interchangeable with braided wire patterns as well. Protective Black Oxide Finish This a copy of the front recuperator piston spring for the German MG42 and Yugo M53. The overall length is 85mm and cannot...

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Now: $8.25
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sku: MG42-3-SR-Front Piston

MG-42/Yugo 53/MG3 Recuperator Front Piston

Newly Made Item Hardened Steel with Black Oxide Finish This a copy of the front piston from the late-war German MG42 and is also identical to the front piston of the Yugo M53 as well as the German MG3.

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Now: $16.25
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sku: MG3-SR-Front Pin

MG-3 Recuperator Front Piston Pin

Newly Made Item Hardened Steel with Black Oxide Finish This is the pin that sits directly behind the front piston for the MG3 recuperator assembly. These are 12mm longer than the MG42/Yugo53 pattern and can only be used for...

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Now: $6.25
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sku: MG3-SR - USED

MG-3 Short Recoil/Recuperator Assembly (screws, front piston, and front spring not included)

Original Items Used - Good Condition Generally as shown Includes recuperator assembly. MG3 pattern Mounting Screws Not Included Font Piston with Spring Not Included

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Now: $95.00
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sku: xmg-SD

XMG and MG42 Semi Bolt Hold Open Block

Bolt Hold-Open / Range Safety Device: Retract the bolt and insert this piece through the ejection port then release the bolt forward against it. This will allow you to change barrels and also signal that the XMG, MG34, or MG42 is SAFE. To remove,...

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Now: $15.00
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sku: 42bbl308w

MG42 .308 Winchester Barrel - CHROME LINED

SHIPS FREE IN LOWER 48. Be sure to select "FREE SHIPPING" at checkout. Newly manufactured CHROME LINED barrel with original German or Yugo barrel collar installed and properly headspaced. Barrel Material: CrMoV - GBQ Commonly called...

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Now: $495.00
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sku: 42bbl762-42-59

MG42-59 Barrel (7.62 NATO) CHROME LINED

SHIPS FREE IN LOWER 48. Be sure to select "FREE SHIPPING" at checkout. Newly manufactured CHROME LINED barrel with original German MG3 barrel collar installed and properly headspaced. Barrel Material: CrMoV - GBQ Commonly called...

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Now: $495.00
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sku: 42-762spacer

MG42 308 Tray Spacer (7.62 NATO)

MG42 7.62 NATO Tray Spacer - Set includes Stainless Steel Spacer and Mounting Screw (TRAY NOT INCLUDED) - Removable by a 4-40 flat head mount screw with a 1/16” hex key. - The same tray can be used for both 8mm and 7.62 NATO just by...

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Now: $30.00
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sku: 42bbl762

MG42 7.62 NATO Barrel - CHROME LINED

SHIPS FREE IN LOWER 48. Be sure to select "FREE SHIPPING" at checkout. Newly manufactured CHROME LINED barrel with original German or Yugo barrel collar installed and properly headspaced. Barrel Material: CrMoV - GBQ Commonly called...

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Now: $495.00
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sku: 42213-N

Newly Made MG42 Semi-Auto Bolt Wedge Drilled for Semi-Auto Firing Pin (Wedge ONLY)

Newly Made Striker Wedge Drilled for use with a Semi Auto MG-42 firing pin. Works with both pattern 1 and 2 bolt sets. ONLY INCLUDES THE WEDGE

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Now: $49.50
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sku: 42-Brass Catcher-LG

MG-42/53 Brass Catcher - Low Grade Condition

Original Item: Yugo manufacture Low Grade Condition with rust, dents, and/or tears in canvas

MSRP:

Now: $35.00
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sku: 42219-roller only

MG42 Semi-Auto Bolt Roller Only

Includes Roller Bearing Support Shim, and Screw are NOT Included

MSRP:

Now: $11.50
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sku: 4224RS

Repair Piece for BRP Second Pattern Semi Auto Bolt

This piece is designed to repair a BRP 2nd Pattern bolt that has broken ears for the spring seat. To install the bolt needs to be machined flush in the rear and 2 x .377" slots need to be machined at the top and bottom for the tabs on this part...

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Now: $26.50
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sku: 42219-roller

MG42 Semi-Auto Bolt Roller, Support Shim, and Screw

Includes Roller Bearing, Support Shim, and Screw

MSRP:

Now: $14.50
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sku: 4229-Rear

MG-42/53/3 REAR Short Recoil/Recuperator Screw Set: (Rear Only)

New production: Includes Rear Screw and Nut

MSRP:

Now: $12.00
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sku: 4229-Front

MG-42/53/3 FRONT Short Recoil/Recuperator Screw Set: (Front Only)

New production: Includes front post and nut

MSRP:

Now: $20.00
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sku: 42219-P

MG42 Semi-Auto Bolt Rear Post Only

Includes Rear Post only. The Rear Post is pressed into the bearing hole in the original bolt carrier (002 interference fit). The original bolt carrier will need to be reamed to a precise diameter. Diameter of post .285 Size of reamer .283 We typically...

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Now: $28.50
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sku: m42broken-tool

MG34 - MG42 - M53 Broken Shell Tool

Original Item: Excellent condition

MSRP:

Now: $19.50
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sku: 4221-spring

MG42 Semi-Auto Firing Pin FRONT SPRING

MG42 Semi-Auto Firing Pin FRONT SPRING This spring is the same for both patterns of firing pin.

MSRP:

Now: $1.20
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sku: 11272013-03

MG-42/53 Brass Catcher - Good Condition

Original Item: Yugo mfg Good condition with minor blemishes generally as pictured.

MSRP:

Now: $50.00
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MG42/53 Extractor Removal Tool - Minor Surface Blemishes

Original item: Yugo mfg Good Working Condition With Minor Surface Blemishes

MSRP:

Now: $28.25
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sku: 42217-2

MG42 Semi-Auto Firing Pin (Second Pattern)

MG42 Semi-Auto Firing Pin with Spring (Second Pattern) 17-4 Stainless Steel Spacers included for timing of pin tip to head

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Now: $30.00
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sku: 42221

MG42 Bolt Charging Piece

This part gets welded to the bottom of an original MG42 bolt for the semi-auto pattern charging catch.

MSRP:

Now: $11.75
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sku: 42215-1

Semi Auto Bolt Kit (first pattern)

This kits includes the parts we use to convert a full-auto MG42 / M53 bolt to a semi-auto configuration: Firing Pin w/ spring Firing Pin Support Bushing Charging Piece Rear Post Roller Bearing Roller Bearing Screw Roller Bearing Support...

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Now: $155.00
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sku: 42220

MG42 Semi-Auto Bolt Extension

This part is welded to the rear of an original MG42/53 bolt carrier. NOT METAL FINISHED MG42 SA Bolt and Buffer Setup

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Now: $45.00
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sku: 42219

MG42 Semi-Auto Bolt Rear Post Assembly

Includes Roller Bearing, Support Shim, Rear Post, and Screw The Rear Post is pressed into the bearing hole in the original bolt carrier (002 interference fit). The original bolt carrier will need to be reamed to a precise diameter...

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Now: $40.00
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sku: 42218

MG42 Semi-Auto Firing Pin Support Bushing

This bushing gets pressed into the ejector pusher to support the semi auto firing pin

MSRP:

Now: $5.85
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sku: 42217

MG42 Semi-Auto Firing Pin (First Pattern)

MG42 Semi-Auto Firing Pin with Spring FIRING PIN SUPPORT BUSHING REQUIRED - SOLD SEPERATELY

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Now: $30.00
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sku: 42216

MG42 Semi-Auto Mainspring - Made with Black Oxide Protective Finish

For BRP-pattern MG42 SA Black Oxide Rust Protection Finish Ends: Closed & Ground

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Now: $20.00
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sku: 42214

MG42 Semi-Auto Bolt Blocker

This part is welded to the underside of the MG42 Semi-Auto receiver to prevent the introduction of a full auto bolt.

MSRP:

Now: $26.75
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sku: 42213

MG42 Semi-Auto Bolt Wedge Drilled for Semi-Auto Firing Pin (Wedge ONLY)

Center of Wedge Drilled for use with a Semi Auto MG-42 firing pin ONLY INCLUDES THE WEDGE

MSRP:

Now: $49.50
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sku: 4250

MG42 Ratchet Plate

MG42 Ratchet Plate (new production)

MSRP:

Now: $50.00
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sku: 4229

MG-42/53/3 Short Recoil/Recuperator Screw Set: Front Post, Rear Post and 2 nuts (new production)

New production Includes Front Post with Nut and Rear Screw with Nut

MSRP:

Now: $28.50
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sku: 4218-EjectorBar-Yugo

MG42/53 Ejector Bar - spoon - Yugo (original)

Original Item: Yugo

MSRP:

Now: $6.50
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sku: mg42boltcarrier

MG42-M53 Bolt Carrier - YUGO

Original Item Yugo markings

MSRP:

Now: $22.50
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