AR15 M4 Low Profile Micro .223 5.56 Aluminum Gas Block fit 0.75 inch Barrel 1 Inch Length Tube with Roll Pin

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US $3-6 / Piece | 10 Piece/Pieces (Min. Order)
Supply Ability:
1000 Piece/Pieces per Day
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Quick Details
Place of Origin:
Shanghai, China (Mainland)
Brand Name:
Vector Optics
Model Number:
aluminium alloy
19mm (0.75 inch)
23g (0.8 ounce)
25.4mm (1.0 inch)
Packaging & Delivery
Delivery Time
Shipped in 7 days after payment
Company Information




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Product Description



Vector Optics Micro 0.75 Inch Gas Block Monut (SCRA-55A)


Designed for Real Fire Caliber, Full Metal, Just for 0.75 Inch Barrel, Micro Style


  • Model: SCRA-55A
  • Only install onto 0.75 inch regular barrel and standard gas tube
  • Diameter: 19mm (0.75 inch)
  • Length: 25.4mm (1.0 inch)
  • Overall height: 37.5mm (1.5 inch)
  • Weight (net): 23g (0.8 ounce)
  • Use supplied hex hey to fasten and release onto the barrel
  • High quality aluminum alloy in durable black matte finish
  • Shock proof designed for real fire caliber
  • With proper hex key and pin




TAC Vector Optics (VO)


Q: Is VO a professional organization?

A: Yes, we have been engaged in this field for more than 10 years.


Q: How do I pay for my order?

A:  Alibaba Escrow is the first option and priority for the payment. We can also accept the payment via Pay-Pal or Western Union or Bank T/T Wire Transaction or Credit Card (in US only) etc.


Q: How will my order be packaged?

A: Every item is packaged in a heavy bubble wrap inside an individual box.


Q: What is your quality control? 

A: Quality is our culture. We are 100% detailed check before shipping.


Q: Do VO products have a warranty?

A: Yes, we offer 5 years limited warranty to our products



Our Services

Company Policy: Strive for the Customer Satisfaction

We have rich experience upon the international order all over the world. We can deliver the order to APO Box. We will combine the shipping cost for multi items purchase.


Before Shipping

We will deliver the item to the customer in one or two business handling day when the payment is cleared. We will check the order carefully before it is sent to you.

We will pack the order well tough with normal appearance, which is easy for your custom clearance. If you need additional request upon the packing please let us informed at the first time.


If possible, please supply us with your telephone number only for the purpose of your local post office needs. In case that you are absent and not able to pick up the item at your location in time, the post office may call you for reminder (Mostly, mail carrier will only put a notice).

P.S: We keep high security and confidentiality for our customers’ personnel information.


After Sales Service

Except man-made mistakes, we will exchange the defective with a brand new one within 14 days after you get our product. According to the guild regulations customer shall be responsible for the returning shipping fee.

All scopes and items have 5 years warranty.

Finally, your feedback and suggestion are very important for us.

Thanks again for your attention. We sincerely hope you will enjoy our products.



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