Upgrade your H&K G3 with the FAB Defense M4-G3 FK Collapsible Buttstock. Designed for performance and versatility, this high-quality collapsible buttstock offers five adjustable length positions. Whether you’re a seasoned professional or an enthusiast, the collapsible buttstock for H&K G3 ensures optimal eye-to-target alignment and improved control.
The buttstock is constructed with premium materials, combining 6061 T6 billet aluminum and fiberglass-reinforced polymer composite. It replaces the original stock and securely attaches to the G3 back plate for a firm, reliable fit. This design enhances your natural shooting stance, optimizing stability and fighting posture.
The built-in rubber butt pad minimizes slipping, ensuring consistent performance in any environment. Additionally, the integrated storage compartment allows you to carry two CR123 or AA batteries for added convenience. Quick-detach sling swivel connectors on both sides provide easy sling attachment for seamless maneuverability.
Available in black, olive drab green, or desert tan, the FAB Defense collapsible buttstock offers durability, style, and functionality. Experience improved handling and customization for your H&K G3 with this advanced upgrade.
M4 Collapsible Buttstock for H&K G3 – Features:
Five length adjustment positions for better versatility.
Durable 6061 T6 billet aluminum and polymer construction.
Quick-detach sling connectors on both sides.
Rubber butt pad for slip resistance.
Built-in storage for two CR123 or AA batteries.
Replaces the original stock, attaching securely to the G3 back plate.
Available in black, olive drab green, or desert tan.
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Shipping & Returns
Domestic Shipping – For orders shipping within the USA*
Shipping Option
Cost
Delivery Time
Free Shipping – Regular Registered Shipping –
*Please note there is no option of adding Insurance protection to this form of shipping
FREE For orders above 199$ 12.95$ For orders below 199$
8-16 Business Days
Priority Shipping
14.95$ for orders Above 199$
17.95$ For orders under 199$
4-12 Business days
Express Shipping (UPS)
Cost will depend on the destination of the package (calculated shipping cost can be seen at checkout)
3-6 Business days
* For qualified orders. If an item is not available in our US warehouse it will be shipped from Israel (in this case the delivery times may be slightly longer).
International Shipping – For orders shipping outside USA
Free Shipping – Regular Registered Shipping –
*Please note there is no option of adding Insurance protection to this form of shipping
FREE For orders above 199$
12.95$ For orders below 199$
14-35 Business days
Priority (Eco Post)
14.95$ for orders Above 199$
17.95$ For orders under 199$
8-18 Business days
Express Shipping
Cost will depend on the destination of the package (calculated shipping cost can be seen at checkout)
3-8 Business days
*International TDI shipments – Orders shipping outside of the US will be shipped via USPS / UPS for a fee of 25$ (shipping cost can be seen at checkout).
Returns & Exchanges
All return claims must be made not more than 7 days after the item has been received.
Returns must be sent back within 30 days after delivery.
Exchanges are subject to product availability and may be subject to additional shipping fees.
To be eligible for a return or exchange, the item must be in its original condition, unused, and with all original tags and packaging.
You may return your item within 30 days from the day it was delivered to you in order to receive a refund. Please notify us of your intent to return the item within 7 days of receiving it. The item must be in its original condition and packaging. Shipping costs are non-refundable. For full return details, click here to view our complete return policy.
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