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Recent Products

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    HK Parts

    HK21 / HK11 Barrel 7.62mm – 14.5 inches “SHORTY”

    We are making new HK21/HK11 barrels to fit the new kits that are now currently in progress at our shop....

    $800.00
    In stock
    Add to cart
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    HK Parts

    HK21 / HK11 Barrel 7.62mm – 14.5 inches “SHORTY”

    $800.00
    Add to cart

    We are making new HK21/HK11 barrels to fit the new kits that are now currently in progress at our shop....

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  • Quickview

    AR-15 Parts

    Hockey Stick – Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    Right Side only Ambi-Fit Bolt release for our Belt Fed Upper & the MCR belt fed upper. This is our...

    $75.00
    In stock
    Add to cart
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    AR-15 Parts

    Hockey Stick – Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    $75.00
    Add to cart

    Right Side only Ambi-Fit Bolt release for our Belt Fed Upper & the MCR belt fed upper. This is our...

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  • Quickview
    Right Side PDQ

    AR-15 Parts

    PDQ – Left side chop – Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    Right Side only PDQ Ambi-Fit Bolt release for Belt Fed Upper

    $75.00
    In stock
    Add to cart
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    AR-15 Parts

    PDQ – Left side chop – Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    $75.00
    Add to cart

    Right Side only PDQ Ambi-Fit Bolt release for Belt Fed Upper

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  • Quickview
    Placeholder

    AR-10

    Billet AR-10 DPMS Pattern Matched Pair

    100% Billet AR-10 upper and lower matched receiver set based on the DPMS curved back pattern. Precision CNC machined from...

    $550.00
    In stock
    Add to cart
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    AR-10

    Billet AR-10 DPMS Pattern Matched Pair

    $550.00
    Add to cart

    100% Billet AR-10 upper and lower matched receiver set based on the DPMS curved back pattern. Precision CNC machined from...

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Featured Products

Products by Category

Sale Products

  • Quickview
    -35% Off Out of stock

    AR-15 Parts

    5.56 Full Auto Bolt Carrier Group for AR-15/M-16/M4

    AR-15 Bolt Carrier Group with Black Nitride, externally sourced

    $150.00 Original price was: $150.00.$98.00Current price is: $98.00.
    Out of stock
    Read more
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    AR-15 Parts

    5.56 Full Auto Bolt Carrier Group for AR-15/M-16/M4

    $150.00 Original price was: $150.00.$98.00Current price is: $98.00.
    Read more

    AR-15 Bolt Carrier Group with Black Nitride, externally sourced

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  • Quickview
    Placeholder
    -43% Off

    Tooling

    DUALFEED 80% JIG

    DUAL FEED JIGS do not include any tooling and will have to be shipped separately to legal states only.

    $350.00 Original price was: $350.00.$200.00Current price is: $200.00.
    In stock
    Add to cart
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    Tooling

    DUALFEED 80% JIG

    $350.00 Original price was: $350.00.$200.00Current price is: $200.00.
    Add to cart

    DUAL FEED JIGS do not include any tooling and will have to be shipped separately to legal states only.

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  • Quickview
    -45% Off

    HK Parts

    Rounded Profile HK21 Reinforcement Rails – HKP HK21 T-Rail Set – 7.62×51 – .308 (Rounded Style)

    Rounded HK21 Reinforcement Rails High strength 1045 carbon steel CNC machined from a single piece of billet material to a...

    $200.00 Original price was: $200.00.$110.00Current price is: $110.00.
    In stock
    Add to cart
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    HK Parts

    Rounded Profile HK21 Reinforcement Rails – HKP HK21 T-Rail Set – 7.62×51 – .308 (Rounded Style)

    $200.00 Original price was: $200.00.$110.00Current price is: $110.00.
    Add to cart

    Rounded HK21 Reinforcement Rails High strength 1045 carbon steel CNC machined from a single piece of billet material to a...

    • [yith_compare_button]
  • Quickview
    Placeholder
    -33% Off

    AR-15 Parts

    Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    Right Side only Ambi-Fit Bolt release for Belt Fed Upper

    $75.00 Original price was: $75.00.$50.00Current price is: $50.00.
    In stock
    Add to cart
    • [yith_compare_button]

    AR-15 Parts

    Right Side only Ambi-Fit Bolt Release for Belt Fed Upper

    $75.00 Original price was: $75.00.$50.00Current price is: $50.00.
    Add to cart

    Right Side only Ambi-Fit Bolt release for Belt Fed Upper

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Top Rated Products

  • Quickview
    -29% Off

    Firearm Parts

    M16A1 – 80 percent receiver – Partial Fence

    Rated 5.00 out of 5

    Cryostructure M16A1 Profile 80 % Receivers with Partial Fence from Billet   This lower is the proper receiver for the...

    $350.00 Original price was: $350.00.$250.00Current price is: $250.00.
    In stock
    Add to cart
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    Firearm Parts

    M16A1 – 80 percent receiver – Partial Fence

    Rated 5.00 out of 5
    $350.00 Original price was: $350.00.$250.00Current price is: $250.00.
    Add to cart

    Cryostructure M16A1 Profile 80 % Receivers with Partial Fence from Billet   This lower is the proper receiver for the...

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  • Quickview

    AR-15 Parts

    BFAR-MOD1 – (RDIAS Compatible) – Purpose Built AR-15 Belt-Fed 100% lower receiver

    Rated 5.00 out of 5

    DIAS COMPATIBLE - 100 % Lower with custom machined to fit M249 feed bag & Nut-Sack attachments. Forged by CERRO...

    $200.00
    In stock
    Add to cart
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    AR-15 Parts

    BFAR-MOD1 – (RDIAS Compatible) – Purpose Built AR-15 Belt-Fed 100% lower receiver

    Rated 5.00 out of 5
    $200.00
    Add to cart

    DIAS COMPATIBLE - 100 % Lower with custom machined to fit M249 feed bag & Nut-Sack attachments. Forged by CERRO...

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  • Quickview

    AR-15 Parts

    FULL SUPER CUSTOM DEEP LASERED – AR-15 80% Lower Receiver

    Rated 5.00 out of 5

    CERRO Raw 80 Percent Lower "Anything you want", except machining cut-out lines. Forged by CERRO & Machined by Cryostructure, this...

    $100.00
    In stock
    Add to cart
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    AR-15 Parts

    FULL SUPER CUSTOM DEEP LASERED – AR-15 80% Lower Receiver

    Rated 5.00 out of 5
    $100.00
    Add to cart

    CERRO Raw 80 Percent Lower "Anything you want", except machining cut-out lines. Forged by CERRO & Machined by Cryostructure, this...

    • [yith_compare_button]
  • Quickview
    -29% Off Out of stock

    AR-15 Parts

    5.56 Black Rain Bolt Carrier Group – BCG

    Rated 5.00 out of 5

    Black Rain 5.56 Nickel Boron Complete Bolt Carrier Group NIB-X  This is PREMIUM 5.56 .223 Nickel Boron Complete Bolt Carrier...

    $139.99 Original price was: $139.99.$99.99Current price is: $99.99.
    Out of stock
    Read more
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    AR-15 Parts

    5.56 Black Rain Bolt Carrier Group – BCG

    Rated 5.00 out of 5
    $139.99 Original price was: $139.99.$99.99Current price is: $99.99.
    Read more

    Black Rain 5.56 Nickel Boron Complete Bolt Carrier Group NIB-X  This is PREMIUM 5.56 .223 Nickel Boron Complete Bolt Carrier...

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Best Selling Products

  • Quickview
    Anodized Black 80 percent lower

    AR-15 Parts

    Standard Black Lower – 80% Lower Receiver – 80 percent

    Ambi bolt release cut - Extremely rare on 80% lowers Also known as 80% machined (just needs trigger and safety...

    $75.00
    In stock
    Add to cart
    • [yith_compare_button]

    AR-15 Parts

    Standard Black Lower – 80% Lower Receiver – 80 percent

    $75.00
    Add to cart

    Ambi bolt release cut - Extremely rare on 80% lowers Also known as 80% machined (just needs trigger and safety...

    • [yith_compare_button]
  • Quickview
    AR-15 Upper Receiver
    Out of stock

    AR-15 Parts

    CERRO AR-15 Flat Top Upper Anodized Black

    Manufacturer: CERRO Forging Model: AR-15 / M4 / M-16 Caliber: .223 / 5.56 NATO Finish: BLACK Sights: Picatinny Rail Condition: FACTORY NEW

    $64.00
    Out of stock
    Read more
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    AR-15 Parts

    CERRO AR-15 Flat Top Upper Anodized Black

    $64.00
    Read more

    Manufacturer: CERRO Forging Model: AR-15 / M4 / M-16 Caliber: .223 / 5.56 NATO Finish: BLACK Sights: Picatinny Rail Condition: FACTORY NEW

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  • Quickview
    80_percent_lower_01

    AR-15 Parts

    AR-15 80% Lower Receiver – Premium CERRO Forged and Machined – Rear pocket pre-machined

    CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...

    From $55.00
    In stock
    Select options This product has multiple variants. The options may be chosen on the product page
    • [yith_compare_button]

    AR-15 Parts

    AR-15 80% Lower Receiver – Premium CERRO Forged and Machined – Rear pocket pre-machined

    From $55.00
    Select options This product has multiple variants. The options may be chosen on the product page

    CERRO Raw 80 Percent Lower Forged & Machined by CERRO, this 80 percent lower is not an FFL item and...

    • [yith_compare_button]
  • Quickview
    -37% Off

    AR-15 Parts

    AR-15 80% Matching Upper and Lower Receiver Pair Set – CERRO Forged and Machined

    Rated 5.00 out of 5

    Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...

    $150.00 Original price was: $150.00.$95.00Current price is: $95.00.
    In stock
    Add to cart
    • [yith_compare_button]

    AR-15 Parts

    AR-15 80% Matching Upper and Lower Receiver Pair Set – CERRO Forged and Machined

    Rated 5.00 out of 5
    $150.00 Original price was: $150.00.$95.00Current price is: $95.00.
    Add to cart

    Cerro Raw 80 Percent Lower with matching upper Forged & Machined by Cerro, this 80 percent lower is not an...

    • [yith_compare_button]
  • Quickview

    AR-15 Parts

    Purpose Built AR-15 Belt Fed 80% lower receiver (BFAR)

    Raw 80 Percent Lower with custom machined M249 feed bag attachment Machined by Cryostructure, this 80 percent lower is not...

    $120.00
    In stock
    Add to cart
    • [yith_compare_button]

    AR-15 Parts

    Purpose Built AR-15 Belt Fed 80% lower receiver (BFAR)

    $120.00
    Add to cart

    Raw 80 Percent Lower with custom machined M249 feed bag attachment Machined by Cryostructure, this 80 percent lower is not...

    • [yith_compare_button]
  • Quickview
    BELT FED LOWER

    AR-15 Parts

    Purpose Built AR-15 Belt Fed 100% lower receiver (BFAR)

    100 % Lower with custom machined to fit M249 feed bag & Nut-Sack attachments. Forged by CERRO & Machined by...

    $200.00
    In stock
    Add to cart
    • [yith_compare_button]

    AR-15 Parts

    Purpose Built AR-15 Belt Fed 100% lower receiver (BFAR)

    $200.00
    Add to cart

    100 % Lower with custom machined to fit M249 feed bag & Nut-Sack attachments. Forged by CERRO & Machined by...

    • [yith_compare_button]
  • Quickview
    HK Reinforcement Rails
    -45% Off

    HK Parts

    HK21 Reinforcement Rails – HKP HK21 T-Rail Set – 7.62×51 – .308

    HK21 Reinforcement Rails High strength 1045 carbon steel CNC machined from a single piece of billet material to a precise...

    $200.00 Original price was: $200.00.$110.00Current price is: $110.00.
    In stock
    Add to cart
    • [yith_compare_button]

    HK Parts

    HK21 Reinforcement Rails – HKP HK21 T-Rail Set – 7.62×51 – .308

    $200.00 Original price was: $200.00.$110.00Current price is: $110.00.
    Add to cart

    HK21 Reinforcement Rails High strength 1045 carbon steel CNC machined from a single piece of billet material to a precise...

    • [yith_compare_button]
  • Quickview
    Practice_Lowers_01

    AR-15 Parts

    AR-15 80% Practice Milling Lower Receiver

    Rated 5.00 out of 5

    Milling Practice Raw 80 Percent Lower ***FOR FIRE CONTROL PRACTICE MILLING ONLY*** 80 percent lower is not an FFL item...

    $19.00
    In stock
    Add to cart
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    AR-15 Parts

    AR-15 80% Practice Milling Lower Receiver

    Rated 5.00 out of 5
    $19.00
    Add to cart

    Milling Practice Raw 80 Percent Lower ***FOR FIRE CONTROL PRACTICE MILLING ONLY*** 80 percent lower is not an FFL item...

    • [yith_compare_button]

Latest Posts

    latest Comments

    1. Guntrust lawyer on 100% Low Profile Dual-Feed AR-15 Belt Fed 100% lower receiver (LOWPRO-DUALFEED-100)
    2. Charles Spencer on MCR® Magazine Adapter- Steel Reinforced Rigid Carbon Fiber Polycarbonate
    3. Joe on M16A1 – 80 percent receiver – Partial Fence
    4. Joe on M16A1 – Full Fence – 80 percent receiver
    5. Joe on M16A1 – Full Fence – 80 percent receiver

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    Top Rated Products

    • 5.56 Black Rain Bolt Carrier Group - BCG
      Rated 5.00 out of 5
      $139.99 Original price was: $139.99.$99.99Current price is: $99.99.
    • M16A1 Billet Lower 1 M16A1 - Full Fence - 80 percent receiver
      Rated 5.00 out of 5
      $350.00 Original price was: $350.00.$250.00Current price is: $250.00.
    • Practice_Lowers_01 AR-15 80% Practice Milling Lower Receiver
      Rated 5.00 out of 5
      $19.00
    • Privacy Policy
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    © 2023 - CryoStructure

    Customer Support
    Northern Virgina cryostructure7@gmail.com

    For Orders orders@cryostructure.com
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    Latest Posts

      latest Comments

      1. Guntrust lawyer on 100% Low Profile Dual-Feed AR-15 Belt Fed 100% lower receiver (LOWPRO-DUALFEED-100)
      2. Charles Spencer on MCR® Magazine Adapter- Steel Reinforced Rigid Carbon Fiber Polycarbonate
      3. Joe on M16A1 – 80 percent receiver – Partial Fence
      4. Joe on M16A1 – Full Fence – 80 percent receiver
      5. Joe on M16A1 – Full Fence – 80 percent receiver

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