MP5 / SP5 Receivers / Uppers
Upgrade your MP5/SP5 with high-quality H&K receivers and uppers. Designed for superior fit and function, these critical parts ensure your MP5/SP5 build or upgrade is reliable and accurate. Browse our selection of H&K MP5/SP5 receivers and uppers for the best performance.
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On Sale
HK MP5 Trunnion - Gunsmith Special
USA
Now: $24.95Was: $54.95HK MP5 Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...Now: $24.95Was: $54.95 -
On Sale
HK MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used
H&K Heckler & Koch
Now: $3.71Was: $8.95H&K MP5, G3, PTR, HK93 Push Button for Magazine Catch - Used Factory original HK push button replacement part. Limited quantity available. This is a used part, sold AS-IS, and is not eligible for return. Compatible...Now: $3.71Was: $8.95 -
On Sale
HK QD End Cap with Buffer - SP5
HKP HK Parts
Now: $44.96Was: $99.95HK SP5 - Quick Detach End Cap With this SP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft grade aluminum and Cerakoted for the best...Now: $44.96Was: $99.95 -
Out Of StockOn Sale
HK MP5, HK94 Trunnion - 9mm - USA
HKP HK Parts
Now: $43.96Was: $54.95HKP MP5, 94 Trunnion 9mm - USA US made to exact factory HK specifications for the HK MP5, 94 type builds. Machined completely from ordnance grade steel and heat treated to factory specs. These are the best USA made trunnions on the market. Machined to HK...Now: $43.96Was: $54.95 -
On Sale
HK MP5 Case Deflector - 9mm, .40 S&W Receivers
HKP HK Parts
Now: $19.96Was: $24.95HKP HK MP5 Case Deflector - 9mm, .40 Receivers US-made steel case deflector for HK MP5 and MP5K receivers in 9mm and .40 S&W. Installs on the ejection-port flat, rivet or weld, to redirect brass and support reliable extraction on MP5 and MP5K style...Now: $19.96Was: $24.95 -
Out Of StockOn Sale
HK MP5, SP5 A1 End Cap - Sling Swivel - BLEMISHED
H&K Heckler & Koch
Now: $56.21Was: $139.99H&K MP5 & SP5 A1 End Cap With Sling Swivel - BLEMISHED ONLY 1 UNIT AVAILABLE - AS PICTURED MISSING RETAINER SCREW COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE...Now: $56.21Was: $139.99 -
On Sale
HK MP5 QD End Cap with Buffer - Black - USED
HKP HK Parts
Now: $44.96Was: $99.95HK MP5 QD End Cap with Buffer - Black - USED ONLY 1 UNIT AVAILABLE - AS PICTURED USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. With this MP5 QD end cap upgrade you will get a heavier buffer to...Now: $44.96Was: $99.95 -
On Sale
HK MP5 Trunnion 10mm / .40 S&W - Factory - USED
H&K Heckler & Koch
Now: $223.46Was: $549.95H&K MP5 40/10 Factory Trunnion - USED ONLY 1 UNIT AVAILABLE - AS PICTURED Used genuine German trunnion with round guides. Compatible With: HK MP5 40/10 THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL.Now: $223.46Was: $549.95 -
On Sale
HK MP5 Receiver Flat - 9mm - no Sling Clip
HKP HK Parts
Now: $151.96Was: $189.95HKP HK MP5 9mm Receiver Flat w/o Sling Clip The MP5 9mm receiver flat serves as the foundation for custom MP5 builds. This version does not include a sling clip cutout, offering flexibility for customization. Precision-engineered for compatibility with...Now: $151.96Was: $189.95