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Yankee Hill Machine
Overview
The Yankee Hill Machine Co., Inc. AR-15 Gas Block Front Sight is designed with a .750 diameter, making it ideal for standard gas systems while providing a sturdy and reliable mounting point for your front sight. Made from steel and finished in black, this flip-up sight features a Picatinny mounting interface, ensuring compatibility with various optics and accessories. This gas block front sight is commonly found in builds utilizing a rifle-length gas system chambered in 5.56 NATO, offering enhanced versatility for your shooting setup.
Yankee Hill Machine Co. AR-15 Gas Block Front Sight W/rail .750 Steel Black
Builders have been adding the Yankee Hill Machine Co. AR-15 Gas Block Front Sight W/rail .750 Steel Black to their builds on GunPartPicker since February 2026. All time, it ranks #103 of the 182 gas blocks builders have added. Builds with this gas block are mostly chambered in 5.56 NATO (75%, then .223 Wylde 25%), mostly on mid-length gas (75%, then rifle-length 25%), and nearly all AR-15.
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today both retailers we track have it in stock. Prices barely moved in September 2026, holding around $117.49, so there haven't been real sales lately. Buying today, the lowest price is $117.49 at Ammunition Depot, which matches the best price we saw in September.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 35 retailers
We ranked every gas block by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Gas Block Guide →Check it against the live catalog:
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Yankee Hill Machine Co., Inc. Ar-15 Gas Block Front Sight W/rail .750 Steel Black
| Build | Parts | Total |
|---|---|---|
![]() | 32 | $7102.56 |
![]() | 10 | $1687.00 |
![]() | 23 | $3482.52 |
![]() | 30 | $3590.53 |
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