Stockpile Defense SD1 Forged Lower With CMMG Premium Parts Kit (AR-15)

Stockpile Defense SD1 Forged Lower With CMMG Premium Parts Kit (AR-15)


In stock


Stockpile Defense SD1 lower receivers are manufactured for us by our friends over at PWS. We needed a M4 style, simplistic, yet properly done lower for LE/Agency contracts so we asked for a variance and they did it! What makes them so great, you ask? Well, it’s the machining quality you come to expect from something with the SD logo on it. And, because it’s made by PWS, you know they’re held to tight tolerances with great quality controls. These lowers are a perfect way to start a new build off of a top-quality lower. Finished off and anodized per Mil-Spec (MIL-A-8625F) which is a Type III Class 2 hard anodizing process. Machined right here in Boise from USA forgings! Do not hesitate to build your next gas or piston upper off of these beautiful lowers. These are stripped lowers and will not include any parts.

Additional information

  • Machined from American-made 7075 forgings
  • True black Type III Class 2 hard coat anodize
  • Compatible with most AR-15 upper receivers
  • Simple and refined

CMMG Premium LPK 5.56 (AR-15)


White Bag:

Takedown Pin (1x)
Receiver Pivot Pin (1x)
Takedown Pin Detent (2x)
Takedown Pin Detent Spring (2x)


Yellow Bag:

Bolt Catch (1x)
Bolt Catch Plunger (1x)
Bolt Catch Spring Pin (1x)
Bolt Catch Spring (1x)
Buffer Retainer (1x)
Buffer Retainer Spring (1x)


Red Bag:

Hammer & Trigger Pin (2x)
Hammer Spring (1x)
Trigger Spring (1x)
Disconnect (1x)
Disconnect Spring (1x)


Blue Bag:

Magazine Catch (1x)
Magazine Catch Spring (1x)
Magazine Release Button (1x)
Trigger Guard Assembly (1x)
Trigger Guard Pivot Spring Pin (1x)


Green Bag:

Safety Selector RH (1x)
Selector Detent (1x)
Selector Detent Spring (1x)
Lock Washer (1x)
Pistol Grip Screw (1x)

Hammer (1x)
Trigger (1x)
Pistol Grip (1x)

Weight 1 lbs
Dimensions 10.75 × 6.25 × 3.5 in


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