Yankee Hill Machine Co. AR-15 Gas Block Front Sight W/rail .750 Steel Black

Yankee Hill Machine Co., Inc. Ar-15 Gas Block Front Sight W/rail .750 Steel Black - Gas Block for AR-15 - view 1
Yankee Hill Machine Co., Inc. Ar-15 Gas Block Front Sight W/rail .750 Steel Black - Gas Block for AR-15 - view 2
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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.

Specifications

MPNYHM-9835A
MaterialSteel
Gas Block Diameter.750
FinishBlack
ProfileFlip-Up Sight
Mounting InterfacePicatinny

Available Merchants(2)

Prices checked

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Ammunition Depot logo
Ammunition Depot
~$28.90 est. shipping
Shipping Speed
In Stock
$117
Brownells logo
Brownells
Free shipping
Shipping Speed
In Stock
$135

Build history on GunPartPicker

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.

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Frequently Built With

The part most often added in each category by the builds that include this one

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Caliber

75%
5.56 NATO75%
.223 Wylde25%

Gas System

75%
Mid-Length75%
Rifle25%

Builds Featuring This Part

See all 4 →

Builds in the community that include the Yankee Hill Machine Co., Inc. Ar-15 Gas Block Front Sight W/rail .750 Steel Black

BuildPartsTotal
10" 5.56 build
10" 5.56
32$7102.56
Backup 5.56 build build
Backup 5.56 build
10$1687.00
16" build
16"
23$3482.52
for a duty rifle 10.5" build
for a duty rifle 10.5"
30$3590.53

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